I'm not sure how I would be, but my DC have enough at home for me to know it's a common thing for children.
As I was waiting to speak to DS's keyworker a mum arrived to collect her DS. The manager imediately came over to her with the accident book for her to look at and sign and a letter giving advice. She explained he'd tripped over a dressing up costume and bumped his head on the toy kitchen and that it had happened only 10 minutes earlier. He seemed fine and had a small red mark on his forehead.
The mother completely flipped, picked him up and marched out shouting that he'd never be back again, she'd be complaining to ofsted etcetc, the manager seemed quite upset and tried to follow her to talk to her.
When I passed her on the way home she was sitting on a bench yelling and swearing into her mobile.
I've chatted to this woman before and she seemed really nice, I thought this was quite an over reaction.