If you perceive someone to be weaker than you, don't rub his nose in it. (redeeminggod.com)
Never rub his nose in it, he will only learn to hide it from you as he will be scared of doing it in front of you but will still do it. (dog-care-centre.com)
The outdated techniques of yelling or rubbing their nose in it just doesn't work. (poochped.com)