Doc can't even keep a straight face when talking about how it's just not funny anymore. At least he admits that at one time kids getting nailed in the nads was hilarious.
You know what's more embarrassing than being a fourteen year old whose right testicle was removed after a bout of sack tapping? Being a fourteen year old whose right testicle was removed after a bout of sack tapping only to have your parents force you to appear on TV to discuss that fact.