Scar Marks the Spot

Request: Where, instead of stopping at one organ pull attempt, Kaneki tries again, and again, and gets more and more successful, but still can't kill himself because well, his body's regeneration is crazy. So, after a while, he starts doing it for the feeling, not the actual getting-rid-of-organs thingie. Warning! Blood and extreme self-harm, but it isn't lethal.