Jack...it is more than that. He has been a regular in the East coast of the USA folk scene for many years, and has been a delicate problem for most of those years. I 'think' the last few years it has gotten worse. He is simply unable to relate to others with normal social graces, and has very little concept of what is appropriate behavior. He has been 'told' that certain behavior will result is his not being able to attend events, so he stays just barely inside the 'line.'

He DOES know music & performers, and his 2nd favotite hobby is going to music events and 'telling' performers about times he has seen them and telling other attendees how TO see them.
(You don't want to know about his main hobby.)

We have a great deal of difficulty finding him housing at the Getaway, as NO ONE wants to be in a room near him.

He is not an unintelligent person, and has certain real technical skills, and does manage to live by himself.....he simply cannot carry on a true 'conversation' except on matters of exchanging information and data on music, time, memories...etc.

   Whether some sort of modified Tourette's is also involved, I can't say...it may well be, but it is not a classic form.

It is quite an awkward situation, though 'managable' most of the time.