A man walks into a bar and sees a sign that says, "Free beer for a year! Enter to win!"
So he asks the bartender what he needs to do to enter.
The bartender tells him that he has to complete a total of three challenges in order to be eligible to win the free beer for a year.
The first challenge is to drink an entire pitcher of beer in under a minute. The man, feeling confident, accepts the challenge and chugs the beer in just 30 seconds.
The second challenge is to go out back and pull the sore tooth out of the bar's old and grumpy pet alligator. The man hesitates, but knowing that free beer is on the line, he bravely goes out back and wrestles with the alligator until finally, he yanks out the tooth.
Feeling like a champion, the man eagerly awaits the final challenge. The bartender tells him that in order to win the free beer for a year, he must go upstairs and have sex with the ugliest, meanest, and most unpleasant woman in the entire town.
The man hesitates, but the thought of free beer for a year is too enticing to pass up. So he heads upstairs and nervously knocks on the door. When the door opens, he is greeted by the most beautiful woman he has ever seen.
The woman smiles at him and says, "Congratulations, you've won the free beer for a year! I'm the owner of this bar and I just wanted to see if you were willing to go to such great lengths for free beer. Cheers!"