New job

A guy goes to the U.S. Post Office to apply for a job. The
interviewer asks him, "Have you been in the service?"
"Yes," he says, "I was in Vietnam for three years."
The interviewer says, "That will give you extra points toward
employment." and then he asks, "Are you disabled in any way?"
The guy says, "Yes, 100%... a mortar round exploded near me and
blew my testicles off."
The interviewer tells the guy, "O.K. I can hire you right now.
The hours are from 8:00 A.M. to 4:00 P.M. You can start tomorrow.
Come in at 10:00 A.M."
The guy is puzzled and says, "If the hours are from 8:00 A.M. to
4:00 P.M. then why do you want me to come in at 10:00 A.M.?"
"This is a government job," the interviewer says. "For the first
two hours we stand around scratching our balls... no point in your
coming in for that."