Guy riding doen the road needing gas saw a sign that said "free sex with fill-up".

Since he needed gas he thought what the heck. He pulled in filled up and asked the attendant about the offer of free sex. The attendant said "sure just pick a number between 1 and 10". The guy guessed 8 and the attendant said "sorry the number today is 7".

A couple of days later the guy passed the station with a friend and said "You see that free sex sign that is a total scam." "They want you to guess a number between 1 and 10 and then they tell you it's not the right number."

The friend said, "No man, it's not a scam, my wife won three times last week."