Three things might be going on here
It's either one of three things:
He's doing performance art, but not very well.
Another possibly even in the 1970s using transitor amplifiers: Aim a non-lethal weapon at a residence to produce disorientation, nausea, pain, vertigo, breathing difficulties, and so on. OMG, it's an evil house. George Sr had the money to construct it. Pretty dark though to use your family in this way to sell the story.
In my opinion he sounds like a victim of child abuse (perhaps, sexual). Some consider this a pure manifestation of evil.
dinerfood