It's a summer holiday weekend, and a man walks into a
butcher shop that has a sign in the window saying, "Ground
Sirloin: 29 cents per pound."
The man says, "I'm having a cookout this weekend. I'd like
five pounds of your ground sirloin, please."
The butcher shakes his head and says, "Sorry. I'm all out."
The man, disappointed, goes down the street to another
butcher shop and asks, "How much is your ground sirloin?"
The proprietor replies, "It's $3.29 per pound."
"Three twenty nine!?!" exclaims the customer. "Just up the
street, the butcher sells it for 29 cents!"
The butcher smiles calmly at the gentleman and asks, "Does
he have any?"
"No. He's out of it right now."
"Well," says the butcher, "when I don't have any, I can sell
it for 19 cents per pound!"