A: So he can tell if he is coming or going.
Cheese Was! some old guy came up to me on the street and told me this one.
I came from Chernobyl, I had a tail!
They put on mittens.
I tell you tomorrow.
A:They both have a one-in-a-million chance of becoming a human being.
The sock under my bed. (I don't remember where I heard it. Can't claim ownership.)