lol! I've never been the recipient of a bird plop as of yet, I'm hoping it stays that way.
My cat likes to play peek-a-boo, she hides under a blanket and then jumps out when you look for her. If she could yell surprise I bet she would. It's a little disconcerting because she jumps out straight up with claws extended but so far she's careful not to actually get me.