Toilets out of order after load

When a game finished loading the game is paused and all the toilets are shown as "Toilet out of order" in the notification area. I normally view this as a load artefact that fixes itself quickly after resuming play. This time one of my dupes was in the toilet with a full bladder when the game was saved. When I resumed, as the toilets where temporarily out of order, he exited the toilet and made a mess.