One of the exhibition stand builders I work with has an aversion to the toilets in exhibition halls, on one occasion he saved it up for when he got back to his hotel but unfortunately the lift broke down with him in it resulting in a messy accident.
On another occasion while working on an exhibition at The Palais de Congress in Paris all the water systems failed meaning none of the toilets would flush. I will never forget walking into one trap to see that the mountain of shit had cleared the rim by some distance. I can’t imagine just how desperate the last deficator must have been to hover above a pile of others shit and add to the pile. Luckily I knew a shortcut into the hotel next door.