Haha, here's one that I WILL use one of these days...
*Driver is pulled over for speeding. She groans as the cop gets out of his car and makes his way toward her and prepares to write a speeding ticket.*
DRIVER: "Hi there...you were about to sell me a ticket to the annual Highway Patrolman's Ball, weren't you?"
COP: "Ma'am, highway patrolmen don't have balls."
DRIVER: *Sly smile*
*Embarrassed cop closes his book and makes his way back to his car and drives away.*
Now whether or not it works I don't know...a friend sent it to me through e-mail! Funny to imagine anyhow.