I want someone to beat the shit out of me sometimes
I hit my head and limbs with my fists when I get really frustrated, sad and upset. But that's not enough. I'd actually pay someone to beat me sometimes, and just not hit my head or face.
I'm not into cutting. It wouldn't be as satisfactory as a beating myself, and it leaves too many marks.
I've considered ordering tools for self-flagellation (not whips, though). I don't know what I could find.