I got my kitty from a frend about 2 weeks ago, and decided to keep his name for the time being but i'd rather give him a more creative name that's suits his personality. His name rite now is bill....not very interesting lol. so my question is, would it be alright to change his name? i don't really call him bill as it is, only nicknames. would it cause a problem? and any ideas for creative names?