TM - He looks more terrier than sharpei, only a couple of rolls thankfully

As much as I would love to catch him in the act, I can't get out there fast enough any way and he is very strong (16kg of pure muscle) so I can't hold him without him hurting me. Mum used to put a 2 litre bottle of water on top of each hole when they had dogs, but I was kind of hoping Christy would pop in with some tips.