Zoos are as bad as circuses and rodeos. But thats all I have to say about that.
To respond to the original question, I never went through my ex-husband's receipts, but when we started getting phone calls that always hung up when I answered and he started acting distant, I went through his wallet one morning when he was in the shower and found a phone number written on a piece of cardboard. Needless to say, it was his girlfriend's phone number. And thats all I have to say about that.
Hippos are cute, but penguins are adorable.