The relieving of oneself is not really a topic I would normally like to bring up “in game” either. I usually do what many of you do and that’s assume that the PCs take care of business themselves and “off camera”.
However, isn’t it one of the most bothersome aspects of being mortal? It seems to become a problem when you least expect it and sometimes too severe to be ignored. I for one have been in some pretty precarious situations when I’ve been hit with the urge and could do absolutely nothing about it. It was all that was on my mind at the time too, i.e. boot camp…
Now, I have been considering creating a spell or condition which would cause its targets to become overwhelmed by this urge, and using it on my PCs of course. (Med LVL campaign) It will work much like the “Tasha’s Uncontrollable Hideous Laughter” spell found in the 2E PHB.
I know that most of us fighting for our lives IRL wouldn’t care about something as trivial as “having an accident”, at least we survived right? However, in the game it’s a magical condition and not physiological, so you have no means of escape. If you make a Fort and Will save then the penalties aren’t as severe…
BTW the BBEG is going to have this capability (Maybe). He’s a dastardly fellow and it fits.
What would happen if you put your PCs through this predicament or your DM used it?