A man walks into a restaurant with a full-grown ostrich behind him, and as he sits down, the waitress comes over and asks for their order.
The man says, "I'll have a hamburger, fries and a coke," and turns to the ostrich. "What's yours?" "I'll have the same," says the ostrich.
A short time later the waitress returns with the order. "That will be $6.40 please," and the man reaches into his pocket and pulls out exact change for payment.
The next day, the man and the ostrich come again and the man says, "I'll have a hamburger, fries and a coke," and the ostrich says, "I'll have the same." Once again the man reaches into his pocket and pays with exact change.