Two men are in a bar when they are approached by a stranger...

Stranger: If you want to see something cool, then follow me to the third floor of this building.

The two men follow the stranger until he leads them to a balcony.

Stranger: Watch this.

The stranger jumps off the building all the way to the bottom floor. To the astonishment of the two men, he survives. The stranger walks back up to the two men.

Two men: That was crazy! How did you do that?!

Stranger: Just position your knees correctly and you can survive any fall. Let me demonstrate again.

The stranger jumps off again, and to the two men's surprise, survives the fall. The stranger walks back up to the men.

Stranger: Would you like to try?

Two men: Uh, sure...

The two men go to the edge of the balcony and prepare to jump. With the preparation of their knees in the correct position, they leap off the side and fall. Unfortunately, both men make a fatal impact with the ground and die. The stranger looks at the bodies and travels back down to the bar. While in the bar, the bartender shakes his head with disapproval and calls the stranger out.

Bartender: Spiderman, why do you have to be such a jerk?!