Ds has just come out of nursery with two bite marks on his arm (red, look like they happened today). His key worker said they were minded to put it down as 'existing injury' as they hadn't heard him crying, so didn't think it had happened on their watch. I had a good look and said I was sure I would have noticed if he'd had them this morning. I was in a mad rush though. It's possible one of the dds did this last night, as there was a lot of squabbling going on at bedtime. Seems very unlikely I wouldn't have noticed though, as he would have been in tears. I've just taken some photos, just in case, and I'm not really sure what to do next. I've had a really intense day trying to sort out my divorce, and this has really thrown me. Part of me doesn't want to send him back.