great service

A guy walks into a bar and sees a sign that reads ...

HAMBURGER: ?1;
CHEESEBURGER: ?2;
HAND JOB: ?3.

He calls to the attractive blonde behind the counter. "Can I help you ?" she asks with a smile.
"I was wondering," whispers the man. "Are you the one who gives the hand jobs ?"
"Yes," she purrs, "I am."
"Well wash your hands," he says, "I want a cheeseburger."