Blind Man Fishing Joke

A woman goes into Bass Pro Shop to buy a rod and reel for her grandson's Christmas present. She doesn't know which one to get so she just grabs one and goes over to the counter.  A Bass Pro Shop 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'll be happy to tell you everything 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 $20.00.  She says, 'That'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.  As she bends over to pick it up she accidentally farts. At first blush  she's embarrassed, but then realizes there is no way the blind clerk  could ever tell that it was her that tooted.  She hands him her card and he rings up the sale and says, 'That'll be  $34.95 please.'  The woman is momentarily confused and asks, 'Didn't you tell me the  rod and reel were on sale for $20.00? How did you get $34.95?'  He replies, 'Yes, Ma'am. The rod and reel was $20.00, the Duck Call  was $11.00 and the Bear Repellent is $3.95.