Without going into much detail, we MAY be catching a glimpse of the sort of behavior which got Dad banned from the Cirque du Soleil. (He possibly saw a man he deemed too hairy, and couldn’t control the trigger finger on his lather blaster… I’VE SAID TOO MUCH ALREADY.)
Andrew Hussie’s author’s note in response to Homestuck pages 002789-002791, as stated in Book 3. If you’re still curious about Dad’s restraining order, he apparently tried to shave the body hair off one of the performers. You can cross that off the list of Homestuck things you still wonder about. John must have been mortified.