array9

If they are persistent offenders, you have a problem.

One route, ( I will  call it the peter mellor) is to hit as hard as you can at them.  The alternative is to warn them that this is what you will do next time, so they better duck out of the way or move on a level or behind the player whose shot it is.

New players may need a lot of reminding initially.  The emphasis must be on ducking below the potential shot.  Running to the side wall is plain stupid and should not be considered as an option.  Moving to the centre is better, but must include ducking down.  The reason is that hitting the ball straight down the centre is very weak, and likely to be easy to return. There might be occasions when such a shot might manage to hit the opponent on the return flight, so should not be dismissed.

The is a group of players who are brasen enough to take advantage of this sort of obstruction tactic.  So Peter's experience is not unknown.  It is often done by people who should know better.

M