A new guy in town walks into a bar and notices a very large jar behind the
  bar. It's filled to the brim with ten dollar bills. The man guesses there
  must be thousands of dollars there. He approaches the bartender and asks
  him:
 "What's up with the jar?"
 
  Bartender: "Well, you pay ten dollars and if you pass three tests then
  you get all of the money."
 
  Man: "What are the three tests?"
 
  Bartender: "Pay first. Those are the rules."
 
  So the guy gives him the ten bucks and the bartender adds it to the jar
  with the other bills.
 
  Bartender: "Ok, here's what you have to do.   Man: "Well, I know I've paid my ten bucks but I'm not an idiot, I won't
  do it. You have to be nuts to drink a gallon of pepper tequilla and
  they get crazier from there.

  Bartender: "Your call. But your money stays in the jar."

  Well, as time goes on and the man drinks a few, he asks,
  "Wherez zat  teeqeelah?"

  He grabs the gallon of tequilla with both hands, and downs it with a big slurp.
  Tears are streaming down his cheeks but he does not make a face.

  Next he staggers out back and soon all the people inside hear a huge
  scuffle going on. They hear barking, screams, yelps and growling, and
  eventually silence. Just when they think the man must surely be dead, he
  staggers back into the bar, his shirt ripped and big scratches all over
  his body.
  "Now" he says "Where's that woman with the sore tooth?"