My baby cousin, when I was a kid, played drums on my Ovation acoustic with two coat hangers, totally f'ed it up. She meant no harm, so I just punched her in the face 2 or 3 times and all was well.
Of course I didn't punch her in the face, but I was one bummed 14 year old

. Now I look for guitars that have some wear and tear on 'em, like my DNA.