Super Man or Super Jerk?

One day there was a drinking party at a roof top. One guy watched a man down a shot, take a running start then jump off the building. The man floated back up and did it again. The finaly the guy asks "how are you doing that?" he answers "easy the currents are so strong around here that you just flowat back up" So the guy downs a shot, jumps off and falls to a horrible bloody death. the bar tender looks at the man and says "gosh super man you are a jerk when your drunk!"