I thought he had got the penalty decisions right up until the one he gave. Like Cooper said none of them are a penalty but if you're giving one you have to give all.
Like Ajb95 said if you give that then I agree dogso has to come into play. Like Arbitre anglais said repeated dissent from Henderson, he should have gone before that penalty was taken, and then after he boots the ball in Marriners direction, so if he hasnt gone beforehand has to go for that, and if all of that isn't sanctioned then him keep berating him after that, he has to go. This isn't just a Marriner thing, this is all top flight referees, which shows its definitely PGMOL and Mike Riley telling refs to let it go. I can only assume to not 'ruin the game'