What annoys me to no end is the fact that they all hit the floor and roll around crying from pain whenever something happens, and as soon as the ref has made a decision, they're right as rain again. Simulating should be punished hard.

Oh and the other fact that annoys me is that they still don't use video assistance for the ref, leading to some extremely unfortunate decision that everyone except the ref knew was dead wrong. Belgium got shafted in the 2002 world championship quarter finals. But this is all thank to Sepp Blatter who rigs his own election to keep the high seat.