too much drinking

This bloke had been drinking at the bar for hours when he mentioned
something about his girlfriend being out in the car.

The bartender, concerned because it was so cold, went to check on her.
When
he looked inside the car, he saw the drunk's buddy, Pete, & his
girlfriend
going at it in the back seat. The bartender shook his head & walked
back
inside. He told the drunk that he thought it might be a good idea to
check
on his girlfriend.

The drunk staggered outside to the car, saw Pete & his girlfriend
entwined,
then walked back into the bar laughing.

"What's so funny?" the bartender asked.