How about no pain, is that not an option?
I would have to say sharp pain. Scratching is fun to be on the receiving end of.
Of course that's an option. Scratching doesn't count as sharp pain in my opinion though.
For some reason I like gum pain and when extremely frustrated I bite the flesh around my wrists or a bent finger.
I hear you. I find going to the dentist weirdly enjoyable. I don't like hurting my hands or feet though, also everything hurtful involving my nails is a big no-no.
You haven't met the right women. lol. Okay, how about punching things. I guess blunt pain. In extreme anger I have a tendency to split knuckles and sprain or break bones, usually my own bones on objects as a short term burst. I've learned to control myself a bit more since the last few times.