PerthImp
Vital Football Hero
I once used a toilet on a deserted island in Australia which consisted of a wooden bench with a hole in it perched over a 15' cave dug out of the ground below it. Maybe they could do that in the temporary stands to stop people needing to use the toilets at half-time. It can then be spread on the pitch on Monday morning.
It's called a long-drop - for a very good reason! They usually don't smell too healthy either ???