An engineer dies and reports to the pearly gates. St. Peter checks his dossier and says "Ah, you're an engineer... you're in the wrong place." So the engineer reports to the gates of Hell and is let in. Pretty soon the engineer becomes dissatisfied with the level of comfort in Hell, so he begins designing and building improvements. After a short while all of Hell has air conditioning, flushing toilets, and escalators. And the engineer has become a pretty popular guy in Hell.
A couple of month's later God calls Satan on the phone and says with a sneer: "So, how's it going down in Hell?" Satan replies, "Hey, things are going great. We now have air conditioning, flushing toilets, and escalators. Why, there's no telling what my engineer will come up with next." God replies "What??? You've got an engineer?? That's a mistake, he never should have gotten down there... send him back immediately." Satan says "No way. It's nice having an engineer on my staff. I'm keeping him." God screams back, "Send him back up here or I'll sue!!!" Satan laughs uproariously and answers: "Yeah, right. AND JUST WHERE ARE YOU GOING TO FIND A LAWYER??"