One of the things that my cat Bobby Girl does is knock over cups or glasses. If we sit a cup down on the ground or on a counter, that still has a small amout of liquid in it or is empty, Bob will stick her paw on top to knock it down. I don't think she does it to get to what is inside because I have never seen her actually drink it. She just knocks it over then walks away! She just doesn't like to have cups left laying around I guess. Sometimes we forget that she does this, but if we see her starting to tip the cups over we tell her to stop, then move the cups elsewhere. I just think this is silly, that she feels the need to topple the cups. What are some silly or odd behaviors your cat/s have?