A STOOL ?
Surely a deck-chair would be better !!
(Sorry ! I couldn't resist it. Reminds me of a conversation I overheard on a hospital ward recently. Doctor to Patient "Are your stools brown or black ?" The mind boggles !!!!)
At least ! Who would pay for them in local leagues ? The three officials fees are already too much for some of the smaller clubs.
Sin bins would have to be located well away from the dugouts as wll - More expense.