One afternoon at Cheers, Cliff Clavin was explaining the Buffalo Theory to his buddy Norm.
Here's how it went:
"Well ya see, Norm, it's like this... A herd of buffalo can only move as fast as the slowest buffalo. And when the herd is hunted, it is the slowest and weakest ones at the back that are killed first This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular killing of the weakest members. In much the same way, the human brain can only operate as fast as the slowest brain cells. Excessive intake of alcohol, as we know, kills brain cells. But naturally, it attacks the slowest and weakest brain cells first. In this way, regular consumption of beer eliminates the weaker brain cells, making the brain a faster and more efficient machine. That's why you always feel smarter after a few beers."
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 gets dissatisfied with the level of comfort in hell, and starts designing and building improvements. After a while, they've got air conditioning, flush toilets and escalators, and the engineer is becoming a pretty popular guy.
One day God calls Satan up on the telephone and asks with a sneer, "So, how's it going down there in hell?"
Satan replies, "Hey, things are going great. We've got air conditioning, flush toilets and escalators, and there's no telling what this engineer is going to come up with next."
God replies, "What??? You've got an engineer? That's a mistake — he should never have gotten down there; send him up here."
Satan says, "No way! 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?"