"The Bar" joke

A guy walks into a pub and sees a sign hanging over the bar:
-------------
Cheese Sandwich: $
1. 50
Chicken Sandwich: $
2. 50
Hand Job: $
10. 00
-------------
Checking his wallet for the necessary payment, he walks up to the bar and beckons to one of the three exceptionally attractive blondes serving drinks to an eager-looking group of men.
“Yes? ” she inquires with a knowing smile, “can I help you? ”
“I was wondering”, whispers the man, “are you the one who gives the hand jobs? ”
“Yes, ” she purrs, “I am. ”
The man replies “Well wash your hands, I want a cheese sandwich! ”