DC1 3.5 started at a new nursery a month ago, it's got great reviews and lots of people recommended it. Before that she had done a couple of sessions a week at a forest school. dc is quite shy and has struggled with toilet training. She has good days but struggles with wanting to go when prompted and then asking in time to not have an accident. Nursery have been fine with this and their are others in her class who are in nappies/ are still training. That is until today. Mil picked her up and could see that she was soaked in urine - down to her socks as soon as she got there. She had also had a poo which seemed to have been there for a while too. Mil changed her and left, nursery staff told her that she had also had two earlier accidents. She had also poured/ spilt her lunch (soup) down her and despite having spare clothes wasn't changed. Mil is apoplectic and saying this must have been deliberate / lack of care - I am concerned too of course but can perhaps see how it could happen in a busy nursery especially if she doesn't speak up- thoughts ?