My cat "sammy" was never very friendly. I was disapointed but cats, like people have there own personalities. Lately It's gotten worse she hisses at me for no reason I don't even know that she is home. (minus the fact that she is an indoor cat) tried talking to my vet says he has no idea cause she is so young (just over a year) Can young cats go crazy? can i help her at all? PS when i do pick her (while she is hissing) she will purr after i pet her rub under her chin. werid huh any thoughs would be helpful