Fishing guy make a wish joke

Two guys were on lake fishing, using worms. One of the guys gets a nibble and reels in his line. He caught a bottle. He uncorks the bottle and out come a genie. He grants him one wish, so the guy thinks and thinks.

Finnaly he said: "I wish this whole lake were beer!" Poof!!! The lake turns to beer.

The other guy looks at him and said: "You idiot, now we have to pee in the boat!"