Two guys walk into a bar - but it isn't just any bar. It is a fancy bar near the top of a high rise skyscraper in a big city.
The two fellows drink and get quite intoxicated when one remarks to the other - "Have you ever heard of "convection currents?""
"Convection currents? No, what are those?" - he responds.
"Well you see, due to the little amount of space in between all the tall buildings in the city, small convection cycles are made between the builds. As a result, there is a strong updraft right outside the buildings. As a matter of fact, they are so strong that even if you jump outside the window, the currents will blow you right back in."
After the other drunk scoffs at the suggestion, the first drunk insists "No, seriously! Watch this!"
He jumps out the window and sure enough, he comes flying right back in a moment later.
Needless to say the other drunk is astounded. "Amazing!" - he says, "Convection currents! I have to try this myself!"
He leaps outside the window and plummets to his death.
Then the other drunk walks up to the barkeep and asks for another drink when he says...
"Man, Clark Kent, you are a mean drunk."
