Guy walks into a bar on the 50th floor of a building, only people there are the bartender and another man.
After a bit the first guy looks at the new guy and says "Did you know that the wind around this building is strange, you can jump out that window, and the wind will carry you a short distance, spin you around 3 times and then set you right back on your seat?"
The new guys says "That's a load of crap" First guy says "No it's true I'll show you!" So he jumps out the window and sure enough he goes out a short distance, spins 3 times and lands back on his seat. "See" he tells the new guy.
Well the new guy is stunned, so he tries it and falls to his death.
The bartender looks at the first guy and says "Man you are mean when you're drunk, Superman!"