They pumped their gas and went to pay the attendant. "I'm thinking of a number between one and ten," he said. "if you guess right, you win free sex."
"Ok," agreed one of the rednecks, "I guess eight."
"Sorry, I was thinking of seven," replied the attendant.
The next week the rednecks filled their tank again. When they went to pay, the attendent told them to pick a number. "Five!" said the second redneck.
"Sorry, it's four," said the attendant. "Come back next week and try again."
As they walked back to their car, one redneck asked the other, "Do you think this contest is rigged?"
"No way," said his buddy. "My wife won twice last week."
Two rednecks went to a gas station that was holding a contest: the chance to win free sex when you filled your tank.