Pat, Mick amd Seamus are drinking in a pub when a drunk comes in, walks up to them, and points at Pat, shouting,

“Your mum’s the best shag in town!”

Everyone expects a fight, but Pat ignores him, so the drunk wanders off and stick his nose into a pint of Guinness at the far end of the bar.

Ten minutes later, the drunk comes back, points at Pat again, and says,

“I just screwed your mum, and it was grand!”

Again Pat refuses to take the bait, and the drunk goes back to the far end of the bar.

Ten minutes later, he comes back and announces, “Your mum said it was the best thing since sliced bread!”

Finally, Pat interrupts. “Go home, Dad,… you’re pissed!”

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