Two guys leave a bar one night on their way to their respective homes. They are not drunk. Shortly before they part, they see two dogs humping in a yard that fronts on the public sidewalk.

One guy says (I didn't say he didn't have a buzz on) : " I wonder how much liquor it would take to get my wife to do it that way?"

The other guy says: " Let's make a bet on how much liquor it takes with our wives".

Both guys agree to try the bet.

They meet later some days later.

The second guy says: " It took a pint of whisky to get her to agree".

The first guy says: " You win, hands down. It took me a quart of whisky just to get her into the back yard".