Two guys were on a ship that sank in the middle of the ocean. They managed to inflate a rubber life raft and grab a box of provisions before their ship slipped under the surface.
After floating under a blazing heat for six days, they ran out of food and water. On the tenth day, bleary eyed and half dead from heat, thirst, and starvation, they spotted a small object floating toward them in the water. As it drew near, they were ecstatic to find that it was an old oil lamp. They grabbed the lamp and rubbed it.
Out popped a tired old genie who said, "Okay, I've been doing this 3-wishes stuff for a while now guys, and, quite frankly, I'm burned out. You guys only get one wish and then I'm outtalk here... so make it a good one."
The first guy blurted out, without thinking, "Give us all the beer we can drink for the rest of our lives!"
"Fine," said the genie, and the entire ocean to beer was instantly turned into beer.
"Great move, Einstein," said the second guy, slapping the first guy on the side of the head. "Now we're going to have to piss in the boat."