âWorld recordâ w****r ânot a bad boyâ, his mother tells court Serial public masturbator Gary Chisholmâs mum says heâs ânot a bad boyâ and sheâs âabsolutely, 90 per cent certainâ he has learnt his lesson, a court has heard. Crime by JASON WALLS Premium Content Subscriber only SERIAL public masturbator Gary Chisholm's mother says he's "not a bad boy" and she's "absolutely, 90 per cent certain" he has learnt his lesson, a court has heard. Chisholm returned to the Darwin Local Court on Friday after earlier pleading guilty to one count of gross indecency in a public place.