I shouldn't, but I will, tell you. Last weekend the grandkids were over. GD, 2-1/2 yrs old was watching the dog lick himself. She says, why does Digger lick his pee-pee? I said, that's how dogs clean themselves, you don't have to watch. She says, I can't lick my pee-pee! I tell her, you don't have to, you take baths to clean yourself! She just couldn't grasp the concept of why the dog would like himself.
Same child, after seeing the horse poop, asks me. Why do horses poop? I told her the same reason you and I poop. She says ok. Sometimes simple answers are the best! lol