This rating was determined based on the presence of the following words:

* death (13x)
* dead (6x)
* suicide (4x)
* hell (2x)
* limbs (1x)

"Limbs"? Really? Also, who says death and suicide aren't suitable subjects for kids? They'll have to learn sometime. Given that Sesame Street ruined my childhood, why should anyone else get one? (via Austin Kleon)