About time too. I'm sick of going to the under 17's soccer matches and seeing incorrect decision after incorrect decision. It's enough to turn you off the game.

But for those technophobes and fare dodgers, try this idea (inspired by the good folk of South Fremantle).

A team has 18 caps. You go off, you hand you cap to the bloke coming on. If someone is running around the ground hatless then you tell him to get off the ground.