At a corner or a free kick a defender can wrestle as much as he likes with an attacker. No penalty shall be given. An attacking player can wrestle a defender but on occasion a free kick in favour of the defending team shall be awarded. It is according to the whim of the referee. Football's unwritten rules.
When two players are competing for a ball, if there is any doubt as to whether a foul occurred the ref is to give the decision in favour of the player whose autograph they most want to get after the game. NB: In the case of Uriah Rennie, the decision is given to the player the referee would be least offended by asking for his autograph after the game.
If there's a World Cup coming up, and the football association of a FIFA member country doesn't want to annoy a star player, then the FIFA rules are suspended.
When the ball is near to a touchline you can do anything at all to stop the oppo from getting to it, as long as you're 'shielding it out of play'. Anywhere on the pitch not within 5 yards of a touchline it's obstruction and a free kick.
A foul which is otherwise a clear yellow card will be forgiven if: The offending player is already on a yellow card OR It's a big game and it's only early on.
The referee shall not blow his whistle to finish the game until the goalkeeper clears the ball high into the stratosphere.
If the keeper goes down, regardless of which player is next to him or any other information available, it's a foul.
Foul language and abuse of a referee will not be tolerated unless said player or players represent a 'big money' club
If an argument breaks out and there's a huge melee of players all pushing each other violently, the referee shall only book two players, one of each side.