A guy walks into a bar wearing a large hat.

He sits down and says, "I'll have a beer."

"Okay," says the bartender. "What kind of beer?"

"What do you have?"

"Well, we have Miller Lite, Coors Light, Guinness, Heineken, Corona, and Bud Light."

"Wow, that-"

The guy with the large hat suddenly starts screaming and shaking. His face contorts into a horrible visage of unimaginable horror.

The bartender stares at him silently. He is unfazed by the sudden transformation.

"Do you need anything else?" the bartender asks.

The guy with the large hat says, "A Guinness please."

"Coming right up!" says the bartender.