Or maybe, the helmet is to protect themselves from the head bashing you do when you've made a REALLY big mistake and need to frog. . .
A skein of sock yarn is waiting for the person with the most witty (in my opinion) caption for this pix. Make a comment and I'll choose the winner next Thursday when I come home from the UP.
Thanks to Coralee for the picture! (oh how I wonder what sort of crazy pictures of me she may have stored on her camera. . .)