Buttfuck.
Ooh, this name calling's tremdous fun, isn't it?
Really..? Had personal experience have you? And I see you ignore the fact I also included socialphobia and anxiety in my post. Many ignorant people see them all as the same thing. A socialphobic can act perfectly normally so long as they are in an environment they feel comfortable in, without too many people around, or people they don't know. So it is feasible they may go to a supermarket, but still need to be as close to the entrance as possible in case they have an anxiety attack on the way in, whilst they're there, or on the way out.
But I guess even though I have had experience of people with difficulties, I am wrong and must bow down to your wisdom then.