Hospital

Another unplanned visit to our local A&E. My son seems to regularly have to have an unplanned trip up to A&E. Today was another call from his high school matron saying 'I think your son needs to be seen by the hospital'
Today was a simple cut to his leg which required stitches. He had been playing football and he had been tackled and his opponent's studs have taken a chunk out of his leg leaving his bone exposed.
Not a problem except I needed to find cover for my work at short notice. 
When is it boys grow out of having accidents? He is almost 17, I thought I could have given up my space at A & E by now.