My cousin Jeff plays a real bass guitar in a real band, so the video below from South Park would probably qualify as his ultimate nightmare.  If you don’t feel like watching it let me give you a synopsis: kids watch each other play Guitar Hero; dad shows them that he can play real guitar; kids say it’s ‘gay’; dad is mystified; later that night dad sneaks downstairs in his tighty-whitey’s to try Guitar Hero; dad sucks at it and slinks off to bed.  It used to be that being able to play a guitar got you the girls, now it gets you humiliation in your underwear.  Times are a-changin’.