A man walks into a bar and sees an unopened bottle of Jack Daniels. He goes to grab it.
Bartender: Hey, man. That bottle is 40 bucks.
Man: I was going to show you a magic trick.
Bartender: What trick?
Man: I bet you 5 bucks I can drink this whole bottle without touching it.
Bartender: Oh, YOU'RE ON!
The man takes a deep breath...then grabs the bottle, cracks it open and drinks the whole thing. Meanwhile the bartender laughs.
Bartender: You stupid drunk, you lost the bet!
Man: I did? *hic*
Bartender: Yeah! You touched the bottle.
Man: Aw dammit, I guess I did.
The man pays up 5 bucks. The bartender walks away waving his reward around. The man chuckles at him and leaves the bar with a big smile on his face

Almost as hard as fighting a Holy Paladin.