A few years ago, my daughter broke her arm playing on the monkey bars during school recess. It was actually the second broken arm in her particular 2nd grade class on that particular piece of equiptment within a month. I didn't know those facts at the time but even now still consider it an accident.
For days I had calls from the school board, the principal and the teacher telling me how concerned they were for my daughter and offering any help they could. When I told the principal that I was not taking legal action the phone calls of concern stopped.