Athlete's foot

I came home today after teaching the cub scouts to find my three year old's
perfectly good socks
ruined.
How, you may ask, does a child wear out the tops of his feet?
Sliding down the hill without shoes on a skateboard in the face down position, of course!
The neighbors must think I'm pretty hot stuff.
Let me tell you.
I'm just glad it's only his socks that look like this.
Can you imagine the bloodshed and dental details?
Ahem.
A moment of silence for my child's lost socks.
That'll do pig, that'll do.