I agree cats have very special hearing! My cat Midnight always knows when I fill his water bowl with fresh water. I can run water for other things and he doesn't come but let me fill their water bowl with fresh water and before the bowl is in its place he's there. he can be way over the other end of the house (I have a long house) but he manages to get there. Even when hes supposely asleep. One of my other cats ( I have six) is that away about the doors or windows. If you close a window you've had open, it doesn't matter if she isn't in it, she still runs over from what ever hiding place she's been . She can be way back in a closet sleeping but here she comes soon as a window is closed or a door is open Mom of six babies Midnight, Dixie, Shoe-shoe,Snuggles, Shadow and abe