My thumb was forever sore after learning that pressing the "X" button down harder actually made the cars drive faster. So glad we seem to have switched to using the triggers for driving games now.
When I played Smash Melee as a kid, a few of the neighbor kids would flail about so violently that they would rip their controller out of the console, elbow or armbar me in the face to the point I was bleeding and bruised, throw their controllers about the room breaking the controller and whatever it hit, and just outright kick or punch me with a free hand right as I was about to clinch a game.
Years later, I would learn that that one time I came home from school early and saw a man in a neat black suit talking with my dad, who quickly made an exit, this person was not in fact my dad's friend from work.
He was a fucking FBI agent surveilling the house of the extremely violence normalized kids.
Turns out their dad was some kind of convicted felon in another state, moved here, and was suspected of illegally purchasing or possessing a firearm.
So yeah about half a year later violent-family dad was arrested.
PS: For added irony, my dad later fell down the Q Anon rabbit hole and showed me his whole set up and process for assembling/manufacturing ghost guns with no serial numbers.
For what its worth, as crazy as your dad sounds, that's technically not illegal in most states so long as there's nothing preventing him from purchasing one.