A cowboy runs into a bar and says to the bartender, "Give me twenty shots of your best scotch, and make it quick!"

The bartender pours out the shots, and the cowboy drinks them as fast as he can.

The bartender remarks, "I've never seen anybody drink that fast!"

The cowboy replies, "Well, you'd drink that fast too if you had what I have."

"What's that?" asks the bartender.

"Only fifty cents!"