Some people say the sense of hearing is the first to go, but it's actually the sense of humor. What the hell happens to old guys that they lose all social ability and friendliness, especially over the phone, and especially to strangers or acquaintances? My experiences with these people is that they are unilaterally harsh, inflexible, suspicious, and kinda mean.
I wish I knew some cool old guy who would prove me wrong.
Man, if PHF gets Old Guy Syndrome, I'm outa here.