I mean, I've cut myself (intentionally) on the thigh, but not very deep. It stung more than anything, kinda like razor burn. Being that I already have a vagoo, it is hard to imagine myself wanting to "free" one, but...cutting yourself on the taint probably wouldn't be TOO much worse? Especially if you have a high pain tolerance. And he poured hydrogen peroxide on the unclit yeah? Doesn't that damage tissue? So that, plus the liquor, plus his autism could have added up to him not feeling anything. And my understanding is that he didn't so much cut into his skin as into the abscess, so he probably didn't need to cut too deep to get it to open.
I'm glad this was a train of thought I had today, thanks blaistoiseplushie.