The Luck of the Irish...
Paddy and Mick drive to a petrol station for a fill-up because they've heard about a contest being offered by the station to patrons who purchase a full tank. When they go inside to pay, they ask the attendant about the contest.
"If you win, you're entitled to free sex," says the attendant.
"How do we enter ?" asks Paddy.
"Well, I'm thinking of a number between 1-10. If you guess right, you win free sex."
"O.K. I guess 7, " says Paddy.
"Sorry, I was thinking of 8," replies the attendant.
The next week, they go back to the same station to get petrol. When they go inside to pay, Mick asks the attendant if the contest is still going on.
"Sure," says the attendant. "I'm thinking of a number between 1-10. If you guess right, you win free sex."
"2" says Mick.
"That's a real shame now," says the attendant, "I was thinking of 3. Come back soon and try again."
As they walk back to the car, Mick says to Paddy, "You know, I'm beginning to think this contest is rigged."
"No way," said the Paddy. "My wife won twice last week."