The blind Walmart clerk

My teacher was telling us about this joke today so I thought I would share.

A woman goes into Wal-Mart to buy a rod and reel for her grandson's
birthday. She doesn't know which one to get so she just grabs one and
goes over to the counter. A Wal-Mart associate is standing there wearing
dark shades.

She says, "Excuse me, sir. Can you tell me anything about this rod
and reel?"

He says, "Ma'am, I'm completely blind; but if you'll 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 six-foot Shakespeare graphite rod with a Zebco 404
reel and 10-lb Test line. It's a good all around combination; and it's
on sale this week for only $20.00."

She says, "It's amazing that you can tell all that just by the sound
of it dropping on the counter. I'll take it!" As she opens her purse, her
credit card drops on the floor.

"Oh, that sounds like a Master Card," he says.

She bends down to pick it up and accidentally breaks wind. At first
she is really embarrassed, but then realizes there is no way the blind clerk
could tell it was she who farted. Being blind, he wouldn't know that she
was the only person around.

The man rings up the sale and says, "That'll be $34.50 please. "

The woman is totally confused by this and asks, "Didn't you tell me it was on sale for $20.00? How did you get $34.50?"

He replies, "Yes, Ma'am. The rod and reel is $20.00, but the Duck
Call Is $11.00 and the Catfish Bait is $3.50."