A woman goes to Wal-Mart to buy a fishing rod for her grandson. She grabs one and goes to the counter. A Wal-Mart clerk is standing there wearing dark glasses. She says, "Can you tell me anything about this rod and reel?"
He says, "I'm blind, but if you drop it on the counter I can tell you everything you need to know about it from the sound it makes. She doesn't believe him but drops it on the counter anyway.
He says, "That's a 6 foot Shakespeare graphite rod with a Zebco 404 reel and 10-LB test line. It's a good combination and on sale for $20.00."
She says, "Amazing! You can tell that just by the sound of it dropping it on the counter? I'll take it!" As she opens her purse, her credit card drops on the floor. "Oh, that sounds like a MasterCard," he says.
She bends down to pick it up and accidentally breaks wind. She's embarrassed, then realizes there's no way the clerk could tell it was she who tooted. Being blind, he wouldn't know that she was the only person around.
The clerk rings up the sale and says, "That'll be $34.50 please."
The confused woman asks, "I thought it was on sale for $20.00? How did you get $34.50?"
He replies, "The rod and reel is $20.00, but the Duck Call is $11.00 and the Catfish Bait is $3.50".