An engineer dies and reports to the pearly gates. By mistake, St. Peter directs him to go below. So the engineer reports to the Gates of Hell and checks in.
After a few days the engineer becomes very dissatisfied with the level of comfort in Hell, and decides to do something about it. He designs and builds many improvements, and pretty soon they have air conditioning, flushing toilets and escalators. Needless to say, the engineer is a pretty popular guy.
One day God calls Satan up on the telephone and says, "So how's it going down there in Hell?"
Satan replies, "Hey, things are going great. We've got air conditioning, flushing toilets and escalators, and there's no telling what this new engineer you sent me is going to come up with next!"
God is surprised, "What??!! You've got an engineer?? That's a mistake!! He should never have gotten down there. Send him up to me at once!"
"No way!" Satan responds, "I like having an engineer on the staff, and I'm keeping him!"
God says, "Send him back up here, or I'll sue!!"
Satan laughs uproariously and answers, "Yeah, right. And just where are YOU going to get a lawyer??"