An Irishman is sitting in a pub. In the same pub are three Englishmen.
"Look how angry I'm going to make this Irishman," says one of the Englishmen. He goes up to the Irishman and says, "Saint Patrick was an asshole."
"Oh my," says the Irishman. "I didn't know."
The Englishman returns to his friends, disappointed. "Let me try," says one of his friends. He in turn goes up to the Irishman and says, "Saint Patrick was a coward, a liar and a thief."
"Oh really?" says the Irishman. "I didn't know."
The Englishmen are disappointed. "I have an idea," says the third one. "You'll see how angry he'll get."
He goes up to the Irishman and says, "Saint Patrick was English."
"Yes, I know," says the Irishman. "Your friends have already explained it to me."