I've seen this story before too, but I always enjoy re-reading it.

I especially enjoyed the part where Feynman showed up and they didn't have anything important for him to do right away, so they sent him out to get office supplies. A lot of people would have thrown around a lot of attitude about how running an errand like that was beneath them. Even though Feynman really was a big shot, he never acted like one (and he despised those who did act that way). It was just a job that needed to be done, so he went out and did it.