Not sure if it's worth speaking to the school or not, but a few parents have said they would be fuming and I should do. Last week dds class went on school trip by coach. On the way back the coach took longer than anticipated due to traffic etc and there were no toilets on the coach. My dd wees a lot due to a few issues she has - anyway she was desperate for a wee the coach driver offered to pull over at next service and a dinner lady who was volunteering refused and said no she can wet herself and wee onto some kitchen towel. So my dd had to wee onto the seat and then spend the rest of the journey sat there on a wet seat. I only found out today what had happened as another volunteer has told me. Wwyd anything or nothing? I feel it's a bit grim to make a child wee on a seat and she feels pretty humiliated about the whole thing.