"Johnson Twins" joke

There was a man sitting at a bar, and he looks over at the gentleman sitting next to him and says, “Hey, you look familiar. Are you from around here? ”
The man answers, “Yeah, I live down the street. ”
“No kidding? ” says the first man, “Well, so do I. And hey, you look about my age. Where did you go to high school? ”
“Oh I went to Francis Lewis over on Utopia. Graduated in ‘66. How ’bout you? ”
“Get out. I went to Francis Lewis. And I graduated in ‘66, too. Where’d you go to college? ”
“Baylor, in Texas. ”
“No way! I went to Baylor too. What dorm? ”
“Kevin Sullivan dorm. ”
“Sullivan? You’re not going to believe this. . . ”
Joe the bartender walks over, and the first guy says, “Joe, you won’t believe it in a million years. This guy went to the same high school as me, graduated the same year I did, and went to the same college. We were even in the same dorm. Isn’t that amazing? ”
Joe looks at them both and says, “Yeah, that’s just plain amazing. ”
A third man comes in and says, “Hey Joe. What’s new? ”
Joe says, “Not much. The Johnson twins have just had too much to drink again. ”