I hate calling my children's friends' parents and telling them that their child probably needs stitches to a head wound incurred at my home.
The first was Just Me's son, blood spurting from the back of his head.
The next, Anne's daughter. "Ms. Ann, I think I cut myself. Is it bleeding?"
(aaahhhh! I hate trying to be the calm adult in these situations.)

My son is now traveling with recently mitzvahed buddy to sit with him while he gets probably only a couple of stitches over his eye. At least this injury was calm. If it leaves a scar it probably won't even be that bad.

Do you have any good childhood scars? (Not the emotional kind)