For a while there, one or both was constantly skinned or scabbed over constantly. (Grace was never my middle name).
That was pretty normal when I was a kid; most of us were "walking wounded" a lot of the time and managed to grow up anyway. Now we seem to want to enclose kids in bubbles or something so that they never get hurt or never get sick.
Yep, skinned up knees. I remember skinned up knees. Me and pretty much every kid I knew had skinned up knees there for a while.