Sandwich?

A guy walks into a pub and sees a sign hanging over the bar which reads:

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Cheese Sandwich 1.50
Chicken Sandwich 2.50
Hand Job 10.00
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Checking his wallet he finds one single tenner,
he walks up to the Bar and beckons to one of the three exceptionally attractive birds 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, "indeed I am"

The man replies "Well wash your fucking hands, I want a cheese sandwich."