Cavalier King Charles Spaniels are some of the sweetest dogs you’ll ever meet. Those big dark eyes, that soft coat, and that constant look of love they’re hard to resist.
But here’s what most people don’t tell you: Cavaliers are classic “Velcro Dogs.” They stick to their owners like glue. They were bred for hundreds of years to sit in royal laps and go everywhere with their humans. That deep need for closeness is their best quality and also the reason behind most of their behavior problems.
As a dog behaviorist, I’ve worked with many Cavalier owners who are frustrated and confused. Their “sweet little angel” won’t go potty in the rain, chase every bird in sight, or cry non-stop when left alone. This doesn’t mean you have a bad dog. It means you have a breed specific dog doing exactly what it was designed to do.
This guide covers common Cavalier Spaniel behavior problems, why they happen, and exactly what you can do about them.
Quick Summary Table
| Behavior Problem | Root Cause | Training Difficulty | Time to Improve |
| Separation Anxiety | Bred to be with humans always | Hard | 4–12 weeks |
| Prey Drive & Chasing | Spaniel hunting history | Moderate | 2–6 weeks |
| Housebreaking Problems | Small bladder, slow development | Moderate | 3–6 months |
| Excitement/Submissive Peeing | Over-excitement, emotional sensitivity | Easy | 2–8 weeks |
| Snapping/Guarding | Over-pampering, no boundaries | Moderate | 4–8 weeks |
Problem #1 Separation Anxiety
The Problem: Your Cavalier howls, destroys things, or panics when you leave even for a few minutes.
Root Cause: For 700+ years, these dogs were bred to be constant human companions. Being alone feels genuinely scary to them, not just boring.
The Solution: Independence Training (step by step below)
A very common mistake is giving your dog a long, emotional goodbye. Hugging them, saying “I’ll be back soon, baby!” this actually makes anxiety worse. It tells the dog that leaving is a big, scary event.
Step-by-Step Independence Training:
- Start tiny. Leave the room for just 5 seconds. Come back calmly. Don’t make a fuss. Slowly build up to 30 seconds, then 2 minutes, then 5 minutes over several days.
- Practice “fake departures.” Put on your shoes and coat, pick up your keys then sit back down. Do this repeatedly until your dog stops reacting to those signals.
- Create a special “alone spot.” A crate or a cozy corner with a frozen Kong or chew toy. This spot should only appear when you leave, so your dog starts to look forward to it.
- Boring goodbyes, boring hellos. Leave quietly. Come home quietly. Wait until your dog has all four paws on the floor before you greet them.
- Increase alone time slowly. Go from 10 minutes to 25 minutes, not 10 minutes to 4 hours. Big jumps set you back weeks.
- Use a pet camera to check if your dog is still stressed after 10 minutes. If yes, the time alone was too long to reduce it.
Pro Training Tip: For very anxious Cavaliers, consider getting a second dog or even a calm cat. Cavaliers almost always do better with a companion. This isn’t a shortcut combined with training but it works with their natural biology.
Problem #2 Prey Drive & Chasing
The Problem: Your Cavalier bolts after birds, squirrels, cyclists, or cars with no warning and zero response to your calls.
Root Cause: Cavaliers are Spaniel dogs. Their ancestors were used by hunters to flush birds from bushes. Movement activates a deep, instinctive “chase” response. When it kicks in, your voice becomes background noise.
The Solution: Recall training on a long leash, plus smart management near roads.
This prey drive makes Cavaliers a road safety risk. Many Cavaliers have been hit by cars because they chased something straight into traffic. Never assume your gentle Cavalier is safe off-leash near roads.
What to do:
- Pick one recall word (like “here!”) and only use it when you’re fairly sure they’ll come. Never shout it repeatedly that teaches them to ignore it.
- Make coming back feel amazing. Treats, praise, play. Coming to you should never mean “fun is over.” Never call them over just to put the leash back on and go home.
- Use a long line (a 15–30 foot training leash) so you can guarantee success during early training without letting them bolt.
- Practice in boring places first. Build a strong recall in your quiet garden before testing it near birds or busy paths.
- Use a secure harness, not just a collar. Cavaliers can slip out of flat collars when they lunge forward.
Pro Training Tip: Try the “Premack Principle.” When they return to you on recall, say “go chase!” and toss a toy or flirt pole. You’re teaching them: checking in with you is more fun, not less. This works especially well for training a stubborn Cavalier who ignores food rewards outdoors.
Problem #3 Housebreaking Challenges
The Problem: Frequent indoor accidents, refusing to go outside when it’s raining or cold, and progress that seems to vanish overnight.
Root Cause: Small bladder, slow neurological development, and genuine weather sensitivity. Cavaliers were bred to be pampered wet grass and cold rain genuinely bother them.
The Solution: Strict schedule training, crate use, and gently desensitizing them to outdoor conditions.
So how long does it take to potty train a Cavalier? Honestly, longer than most owners expect. Full reliability usually takes 3 to 6 months. Some Cavaliers still have occasional accidents at 8 or 9 months old, and that’s within normal range. Their bladder muscles physically develop more slowly than larger breeds.
What works:
- Take them out every 45–90 minutes for puppies under 4 months. Set a phone timer. Consistency is everything.
- Always go out after: eating, drinking, sleeping, and playing. These are the four main trigger moments.
- Use a crate properly. A snug crate uses the dog’s instinct not to soil where they sleep. It should be just big enough to stand and turn, not a big open space.
- For the rain refusal: Take them to the exact same grass spot every time, no matter the weather. Stay calm and neutral. No treats until after they go then reward heavily. Keep bad-weather trips short and purposeful. A small dog raincoat genuinely helps some weather-sensitive Cavaliers.
- If you catch an accident happening: calmly say “uh oh” and move them outside. Never scold after the fact they can’t connect punishment to something that happened 2 minutes ago.
Pro Training Tip: Teach a “toilet word.” Every single time your Cavalier goes outside, say the same calm phrase like “go potty” while they’re doing it. After 3–4 weeks, that phrase will actually trigger the urge to command. Incredibly useful before car rides, vet visits, or when it starts raining.
Problem #4 Submissive & Excitement Urination
The Problem: Your dog leaks a little urine when you greet them, when strangers approach, or during excited play often with no warning.
Root Cause: In puppies, it’s usually physical the bladder muscles aren’t fully developed yet. In adult dogs, it’s an emotional response: they’re signaling “I’m not a threat, please be gentle.”
The Solution: Calmer greetings, less drama at the door, and building the dog’s confidence over time.
This is one of the most misunderstood Cavalier Spaniel behavior problems and unfortunately, one of the most harshly punished. Punishing this makes it dramatically worse. The dog is saying “I’m harmless” , punishing that message just makes them more anxious, which causes more leaking.
Most puppies naturally outgrow this by 6–12 months, as long as owners don’t make it worse.
What to do:
- Ignore your dog for 2–3 minutes when you come home. No eye contact, no excited voice, no reaching down. Let them calm down fully, then greet them quietly.
- Ask visitors to crouch sideways rather than leaning over the dog. Looming over a small dog triggers the submissive response.
- Never punish an accident from this not even a verbal correction.
- Take them outside first after you’ve been away, before the emotional greeting happens.
- Build confidence through basic training. A dog who knows “sit” and “stay” feels more secure and is less likely to show submissive behaviors.
Pro Training Tip: When you come home, immediately toss a treat or toy across the room. Your dog switches from “greeting excitement” to “chase mode” which cuts the urination trigger. Do this consistently for a few weeks and they’ll naturally develop a calmer greeting habit.
Problem #5 Snapping, Growling & Small Dog Syndrome
The Problem: Growling when moved off the sofa, snapping at children, guarding food or toys even in a dog that’s usually very sweet.
Root Cause: Lack of consistent rules. When small, cute dogs are carried everywhere, never told no, and never given any structure, they develop anxiety about situations they’ve never learned to handle. Snapping is almost always a fear response, not a “bossy” one.
The Solution: Kind, consistent boundaries. Treat them like a dog, not a stuffed animal.
Are Cavalier King Charles Spaniels aggressive? No not at all by nature. But any dog can develop snapping and guarding behaviors when they have no rules. The owners who love their Cavaliers most tenderly are often the ones who accidentally create this problem because they carry the dog past scary things instead of teaching the dog the world is safe.
What to do:
- “Nothing in Life is Free” rule. Before meals, before going outside, before getting on the sofa the dog should sit first. This isn’t harsh. It gives them structure that actually reduces anxiety.
- Stop carrying them past everything scary. Let them walk, sniff, and figure out the world on their own four paws. Use treats and calm encouragement.
- For resource guarding: Walk up when they have a toy, offer a better treat, take the toy, give the treat, then return the toy. You’re teaching them: “you approach = good things happen.”
- Never punish a growl. A growl is a warning. If you punish it, you get a dog that bites without warning. Address the cause, not the symptom.
Pro Training Tip: Use the same rules you’d use for a Labrador. The behaviors you’d never accept in a big dog jumping, snapping, demanding attention shouldn’t be accepted in a Cavalier either. Kind, consistent rules don’t reduce love. They build trust.
When to See a Professional Trainer
Most Cavalier behavior problems improve with consistent home training. But please seek professional help if:
- Your dog has bitten someone and broken skin
- Separation anxiety causes self-harm (chewing paws, injuring themselves on crates)
- You’ve trained consistently for 8+ weeks with no improvement
- Aggression appears suddenly with no clear trigger; this may indicate pain or a neurological issue. Cavaliers are prone to a condition called Syringomyelia, which causes chronic discomfort and can cause aggression that looks behavioral but is actually physical
- Your dog seems chronically anxious never able to settle despite exercise and enrichment
Always look for trainers certified in positive reinforcement methods (CPDT-KA or Fear Free certified). Avoid anyone using punishment, prong collars, or intimidation. Cavaliers are emotionally sensitive and these methods make anxiety-based problems significantly worse.
Final Word
Cavalier King Charles Spaniels are extraordinary dogs. Their behavior challenges are almost always the flip side of their best qualities: their love for people creates separation anxiety, their spaniel heritage creates prey drive, their sensitivity creates submissive urination.
Understanding the “why” changes everything. These aren’t bad behaviors. They’re communicating. Be consistent, be kind, set clear boundaries and give your Velcro Dog the security they need to thrive.
You’ve got this.
FAQ
Are Cavalier King Charles Spaniels aggressive?
No, they are one of the gentlest breeds. Any snapping or guarding is almost always rooted in anxiety or lack of boundaries, not natural aggression. If your Cavalier is showing repeated aggressive behavior, rule out pain first (especially Syringomyelia) and then consult a behavioral professional.
Do Cavaliers bark a lot compared to other small breeds?
They are moderate barkers much quieter than Chihuahuas or Miniature Pinschers. They’ll bark at strangers or unusual sounds, and separation anxiety can cause continuous howling when alone. Overall, they’re considered low to moderate barkers and generally suitable for apartments once separation anxiety is managed.
How long does it take to potty train a Cavalier?
3 to 6 months for solid reliability, with some dogs having occasional accidents up to 10 months of age. The more consistent your schedule, the faster progress happens. Full bladder control develops neurologically between 6–10 months so some of the timeline is simply biology, not training failure.
