Not 100% relevant, but in hockey there is no offside rule (probably because lumping the ball over the top every time is less of an option). A lad I used to play with would wait until the chaos of a corner or something to slip over the endline and sit down behind the goal. Everyone would forget about him (sure he wasn't even on the pitch!), until our next attack, where he would suddenly pop up beside the keeper, 30 yards away from the nearest defender screaming for the ball. Got us a lot of goals before people started copping on
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