<p>I have long wondered the same thing.</p>
<p>I’ve had two encounters with famous people. One was a few unexpected minutes alone with a presidential candidate at a fundraiser. The other was sitting with an actress and her daughter on a commuter train. Both times I just made polite small talk as I would with anyone else I didn’t know but was too close not to interact with, and both times I got the sense that they really appreciated being treated like normal human beings.</p>
<p>Only afterward did I get the slight tingle of having been with a famous person. Maybe that tingle is just so strong in some people that it makes them scream and cry.</p>
<p>Oh, wait, there was another time. I was at a concert, standing in some hallway where there weren’t a lot of people, and one of the band members walked by and said something really mundane like, “They said the bathroom was down here.” And I sort of vaguely pointed down the hall and said, “Yeah, I think it’s…” And he walked that way and disappeared. And afterward I had the strange sensation that I should have been having a strange sensation but wasn’t, and I thought to myself, “Meeting someone famous probably isn’t supposed to feel like this.” It seems really funny to me now, like something out of a comedy movie.</p>