A woman takes an elevator...

up to a bar.
At the bar she sees a man drinking a beer alone.
The woman walks over to the man and asks him what he’s drinking,
And he responds saying I’m drinking a magic beer.
The woman, a little confused thinks the man is crazy and walks away to talk to other patrons.
After a while with little to no interest being shown from anyone else the woman looks back at the bar and the same man is still sitting there, drinking a beer.
Since little interest has been shown she figures why not, and asks the man what makes his beer so magic.
He says “watch this”
So he takes a sip of beer, opens a window, jumps out, flies around the building and comes back in.
Stunned the woman says you have to do that again
So again, the man drinks a sip, flies around, and comes back in.
The woman excited now says if you do that one more time I’ll try it.
So again the man preforms his trick.
The woman excitedly takes a gulp, jumps out the window, and falls 10 stories to her death.
The bartender walks over to the man and says
“Clark Kent, you’re a real asshole when you’re drunk”