It seems that there's a fence between Heaven and Hell, which had fallen into disrepair. St. Peter sought out Satan.
"Hey, Satan, it's your turn to fix the fence. The big guy says it looks awful. Get it done."
"I like the way it looks, " Satan answered. "I'm not doing anything."
"You have to, " said St. Peter. "It's your duty. You signed a contract when we built the fence, and you are obligated to repair it."
"You think I care about that contract?" asked Satan. "You should know better than that. I said I am not doing anything, and if you don't leave me alone, I may just tell you what you can do with that contract."
"If you don't make the repairs, " St. Peter said angrily, "The law will make you. If you don't live up to your obligations under the contract, we'll sue you."
"Sue me?" Satan couldn't help laughing. "Where are YOU gonna get a lawyer?"