This was an old man's legacy.
He lived a long life, served in Korea, worked a respectable job at some kind of plastics plant, tried to do good by his wife and kid, who happened to be born with some faulty brain wiring. Doesn't want the boy to be institutionalized or electroshocked, so he and his wife opt to ignore the disorder they don't understand. They sweep the kid's problems under the rug. He buys him toys and fancy newfangled Nintendo games to keep him happy.
Kid grows up in body only, not in mind. Grown kid makes Internet videos and stupid pornographic comics causing him to become the most laughed-at Crazy Fool of the early 21st Century. Dear old Dad happens to be in the next room during one of the video productions, experiencing: 1. remarkable geriatric sex OR 2. kidney stone/constipation/any age-related illness pain due to end of his natural life. Groans some loud, hearty groans- which causes a nearly 10 page thread called "What Did It Sound Like When Bob Came?"
Darn- poor Bob! Hope his soul is in a place free from Internet.