My family has had many cats over the years.
Back when I was 4 or 5, we had a cat named Zoey, she would sit by the window and growl everytime anything went past, traffic, people, othercats, it didn't really matter.
Then came my brother's cat named Hendrix, he was a really dumb cat, he used to investigate the water whenever anyone had a bath, then he was all surprised when he fell in.
Then came the current cat, Nobby. *Yes I am sure that's how you spell it.* Who seems to switch between annoying little bastard and 'Butter wouldn't melt' cuteness whenever he feels like it.