Teenagers.

See what happens when I let him out of my sight for a few minutes?  Or in this case, for a few days to attend a heavy metal marathon.  How did it happen, you ask?

"While I was ROCKING OUT, I got kicked in the face by a crowd surfer.  My sunglasses broke and it cut my face.  But I went to the first aid station.  I think it's cool....at least I don't have to shave for a while longer."

Ahhh, to be the parent of a teenager.  And yes, I think he needs a haircut too!