Son says SOn of Satasn does this because he feels socially inadequate, and by making others feel uncomfortable, he is levelling the playing field, so he can feel good about himself. My take on it.....the kid is demon possessed! (but in a polite cordial way and probably is very nice to his grandmother (I say the kid is nuttier than squirrel guano, and has the potential to become a serial killler, so by all means, send the lad to Hollywood!!
OK, we have gone from Satan to airhead with gas.
I say he was spoiled as a kid and this is his way of seeking attention as an adult.