Adventures at QT

I was just at QT picking up some fountain soda, and the guy in front of me put a huge stack of big Slim Jims on the counter.

"$27.63," said the clerk.

The guy looked stricken. He looked at the clerk, dumbfounded.

"They're $2.29 apiece, man," the clerk said, pointing to the price sticker.

The guy took a deep breath. "How much for two?"

"Five bucks."

The guy thought for a moment. "How many do you get for ten?"

The clerk, slowly: "Four."

Pause.

"I'll take three."