@chrisk Many years ago one of the old 3 wheel mobility cars suddenly stopped in front of me, it was in town so no way to pass. After a couple of minutes later the driver empties a bottle of yellow liquid out the window then drives off.
I don’t endorse that sort of thing myself but at least my disability allows me to get out of the car and dump my waste down a convenient drain. ?
With shops toilets being closed at the moment or restricted I found to my horror the week before last that my urinal leaks a little bit after having no where to dump its contents so took it home to empty, thankfully its only a couple of drops but at least I know now.