A man dies and goes to hell.
As he approaches the gates he is stopped by the gatekeeper who asks for his name.
"Joe." he replies.
"Well, joe, I've found your name on the list. There are seven levels in hell, but since your only sin was cheating on a science test in the third grade, you will only be in the first level."
"Oh, it won't be that bad then.", joe replies.
"Joe, that's the hottest level because heat rises. You'd know that if you studied for your test."