An Irish man walks into a bar and buys the only other patron a drink and they strike up a conversation. "So where are you from?" the man asks.
"Dublin."
"No way, me too! Where did you go to school?"
"St. Mary's."
"Really, I did too! This is amazing."
"I know! When did you graduate?"
"1982"
"I don't believe it, me too!"

During their conversation another patron walks in and asks the bar tender what the two men are doing.

"Oh, nothing. The O'malley twins are drunk again."