Cats error

Hello. If I kill the cat (in singleplayer) in chat I will see a message "cat has been slain by (my nickname)" in Polish version i can see "Gracz Kot został zabity przez..." (its mean Player Cat has been slain by ...) its only a language mistake but a bug is if I put water under cat he will stop listen me (stop chasing and i cant stop him). Sorry for my english >.<