When I played rugby at school as a little fella, if we were really thrashing someone, we were always ordered by the teacher to ease up on them. People who scored tries after this order had gone out could find themselves dropped. This led to some amusing sights whereby someone would find themselves with the line at their mercy and then have to either wait for one of the opposition to arrive and tackle them, drop the ball or mystifyingly kick it into touch. It must have looked very funny.