Get a spray bottle from some discount store and fill it with water (the colder the better, but no ice). When your cat acts up, spray him right in the face. After a period of time he will realize this happens when he acts up. It doesn't help your cat, though, if you play roughly with him sometimes and then other times you don't want him to play. Be consistent; if you are playing and he gets too rough, spritz him. Most cats don't like water.
Answer Just so you know spraying bottle sometimes backfires too. My male cat was absolutely fine (even if he HATED IT), he got the message. He still knows I love him. But my female cat associated spraying = my hand... So she hates my hand getting close to her! Especially if you spray their face, they can get SPITEFUL. My male cat just didn't get the message if I just spray his body, he just hates wetness, but he loves to play with water (like pawing it, splashing it, etc). ... So I had to spray in his face. But my female cat hates water, 'cept for drinking it. So she got very spiteful and didn't even want to eat treats from my hand after I sprayed her. So it's possible your cat might start hating the person doing the spraying and only be affectionate around others. >_< it's kinda like your kid saying "i like dad more than mom!" only because dad's only home after work (i mean if mom's a staying-home mom) and won't scold the daughter for bad behavior since he doesn't get to see the daughter very much while as mom would be scolding the daughter for any bad behavior to not spoil her. But in truth, the parent who tries to fix the bad behavior is only doing it for the kid's benefit. (and look at all those parents out there who spoil their kids, and their kids being so selfish and rude!)
separate them
You will have to train them to stop biting because changing their teeth is cruel to the cat or kitten.
To teach your cat to stop biting, you can use positive reinforcement by rewarding good behavior with treats or toys, and redirecting their biting to appropriate toys. Consistency and patience are key in training your cat to stop biting.
Some cats exhibit the behavior of biting other cats' necks while grooming as a natural instinct that mimics the behavior of their wild ancestors. This behavior is a way for cats to establish dominance, show affection, or communicate with other cats.
Cats like biting cardboard because it helps them satisfy their natural instinct to chew and play. The texture and taste of cardboard can be appealing to cats, providing them with mental stimulation and helping to keep their teeth healthy.
shave it off
hit them
How to stop biting my nails
Other answers:Joke: How can you stop a monster from biting his nails?Punchline: Buy him a bag of screws.Joke: How can you stop a monster from biting his nails?Punchline: Send him to a Monster Reform School.
It means to stop biting your fingernails. "Monkey on your back" is a slang term for any addiction or very bad habit. They are telling you you must get over your bad habit and stop biting your fingernails.
Cats may meow before biting as a warning or a sign of frustration. They may be trying to communicate their discomfort or desire for space before resorting to biting.
How to stop biting my nails