They called the publican over to settle an argument.
“Are there two pints in a quart or four?” asked one.
“There are two pints in a quart” confirmed the publican.
They moved back along the bar and soon the barmaid asked for their order.
“Two pints miss, and they are on the house.”
The barmaid doubted that her boss would be so generous, so one of the guys called out to the publican at the other end of the bar, “You did say two pints, didn’t you?”
“That’s right,” he called back, “two pints.”