I was reading Law 6 for another post and read something that stuck out to me.
6.11
If the ball-carrier touches the referee or other non-player in in-goal and either team gains an advantage:
(A) If the ball is in possession of an attacking player, the referee awards a try where the contact takes place.
Is this another way to score? Just touch the referee? If you are being held up, have one of your subs warming up in the in-goal touch you, try awarded?