A man walks into a bar...

Case 1:

A man walks into a bar with a steering wheel in his trousers. The Bartender says, "Why do have a steering wheel in your pants?" The man replies "I don't know, but it’s driving me nuts".

Case 2:

A man walks into a bar, sits down and orders a Bud. He says "Give me a beer before problems start!" The bartender doesn't understand but gives the man a beer.

After 15 minutes the man orders a beer again saying "Give me a beer before problems start!" The bartender looks a little bit confused but pours the man a beer.

This goes on the whole night and after the 15th beer the bartender is totally confused and asks the man "What do you mean with before problems start? And when are you going to pay for all the beers you drunk."

The man answers "You see, now the problems start!"