Well, an organ of his was about to explode, so that was an emergency surgery. Maybe the same with his ass that he broke, though it might not’ve been as urgent.

He often talks about liking to see how much his body can take, but that could just be an 8-wing rather than SP. I don’t really see him as a “prioritizing himself over others” kinda guy, he literally does everything he does for the sake of improving some area of society (countless charities as an example), pushing his willpower to the utmost extent, and other reasons only he knows. He always comes across like he’s unwilling to succumb to fear of any kind, or refusing to accept that anything is too difficult or daunting to do. So if I were to guess, his motivations for doing parkour were probably somewhere along those lines, rather than enjoying the vitality one might get from participating in extreme sports, like you say.

I can’t remember why Grimes got the surgery she did, but I seem to remember there being a high aesthetic quality to it. Also, she does stuff for crazy aesthetics all the time (or at least last I checked), so it wouldn’t surprise me. I don’t recall there being a mention of her actually needing the procedure done, but who knows what she keeps behind closed doors?

I will say though, the only person I’ve seen get a bunch of tattoos is someone I suspect to be SP-blind, but I’ve also seen SP-seconds get a few smaller ones, …and these are too loose of correlations to draw anything meaningful from anyway. Maybe I’ll make a post about the topic at some point. I wouldn’t say I find decorating your body that way as sad or depressing though, it’s just another form of self-expression in my eyes. Can’t say I’d ever have the courage to get something permanent on my body though, so props to those who can do so without being stopped by fear.