The journey home was uneventful until I reached Morrisons roundabout and I just had to go in their toilets. As I went to lower myself on the pan it all came away again and I emulsioned the back of my trousers with barium, the back of the pan and most of the floor. I cleaned myself up, and the toilet as best as possible and then made the best of a bad job walking out of the store with everyone thinking I must have been…