On the top of a tall building in a large city, there was a bar. In this bar, a man was drinking heavily. He would ask the bartender for a tequila shot, then walk out to the balcony and jump off. Minutes later he would appear in the elevator and repeat the whole process.
A fellow drinker watched this happen a number of times until curiosity got the better of him.
Finally he went up to the man and asked, "Hey, you keep drinking, then jumping off the balcony. And yet, minutes later, you're back again. How do you do it?"
"Well," said the other man, "the shot of tequila provides buoyancy such that when I get near the ground, I slow down and land gently. It's lot of fun. You should try it."
The guy, who was also quite drunk, thought to himself, "Hey, why not?"
So he goes out to the balcony, jumps off, and seconds later he has splatted straight onto the ground, stone dead.
The bartender looks over to the other guy and says, "Superman, you can be a complete as*hole when you are drunk!"