I'm sure this is an inevitable parenting experience, but I guess I was blissfully in denial that my kid wouldn't do such a thing. Doh! It's not so bad. She cut about an inch off where bangs would be. She hadn't even had her first official hair cut. Oh well!
ETA: This occurred while I was reading The Short Second Life of Bree Tanner. Go figure. There's something about reading The Twilight Saga and neglecting your kids!