Some people think Joe is a bit odd because he’s always off by himself and is very obvious about how he goes out of his way to avoid being around more than one or two people, especially if he doesn’t already know them.
He’s not all that odd though. He is simply one of many that have a phobia (I forget the “official” name of it) that leaves him unable to function in crowds of people. In his case, a “crowd” is anything more than two people, three people if he’s having a good day.
His problem is complicated by a recurring nightmare in which he finds himself in his underwear holding a guitar, in front of a crowd of thousands… all of whom are demanding that he perform in spite of the fact that he doesn’t even know how to hold the instrument, never mind play it.
All things considered, I’d say that Joe is doing pretty good under the circumstances.