Primary schools are creating rules for parents to stop them misbehaving at school sporting events.
Teachers claim that more and more parents are shouting at referees and encouraging their children to cheat.
One primary school in north London has a list of eight rules for parents to follow.
No swearing
One rule is that parents are not allowed to swear, and another one reminds them that the referee's decision is always final.
Headteachers support the idea of bringing in rules.
One said: "You get these dads shouting things like 'get the man, not the ball'. It's probably quite scary if you are a little boy of 11 and have all these dads swearing."
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