Ouch!

The Boy went his length on the way home from school today. I didn't see it, but he was lying on the pavement when I came round the corner, looking for sympathy. I picked him up and dusted him down, and didn't think anything more about it until he came down the stairs after getting changed and showed me his skinned elbow. And then when I was putting his shirt in the wash, I discovered this. Poor wee man!