while i was writing up the wiki article for the heartbreak incident (yes i've been working like a maniac on the wiki) i figured out why sidestep has the burning hair smell and blood in their mouth when they get super stressed out, they're having functional seizures (and auras)!
i didn't actually understand how sidestep could have seizures while not being epileptic, but then i found out that's still possible. anyways, sometimes people smell burning hair or other phantom smells when they're about to have a seizure, and burning hair in particular is a stress scent for sidestep. you can also bite your tongue during a seizure.
they (almost always) trigger when sidestep's facing something very traumatic eg:
the final hb flashback in rebirth (and malin confirmed they're having a seizure in their sleep for the december 2023 qna)
[i]Around you, the apartment shrinks into focus, the hallway ejecting you into the living room. A small, dead space, smelling of feet and antiseptic.[/i] (And burning hair.)
when they wake up in their body at the gala debut, they have the burning hair smell and the taste of blood in their mouth
"It takes a moment to tap in the right sequence, bringing the armor to life; green numbers scroll across the corner of your vision. You can taste metal on your tongue as you feel the Rat King cozy up against your hindbrain, the telltale stench of burning hair tickling your nose as the nanovores contained inside your glove come alive.
triggers if you fuck up setting off the sword of damocles left in argent's head during the bridge fight if you didn't already trigger it in rebirth
("You can feel their thoughts wrap themselves around yours, tugging at you, and you obey, falling back in their grasp, falling back in your body, gasping in pain as you're greeted by what must have been a seizure.")
release the catastrofiend in chapter 19 at the auction (even as the puppet it will trigger) or chapter 20 (mortum shoots you with the disintregun)
end up seeing chen's version of the heartbreak events while attempting to dethread him when you ask him to help you find the threads with too low friendship.
"What…happened?" Things start coming back, uneasy things, terrible memories. You must have blacked out again. Running on empty, too tired, and Chen's mind was a lot tougher to work with than you imagined. "You started seizing up. I was about to call an ambulance when…" His voice drifts off, and you can see it in his eyes. No ambulance. He wouldn't have. Not this time.
it's also possible that this is a defense mechanism against telepathic intrusion
[Ortega's immunity against telepathy as an epileptic] has something to do with the electrical storms in the brain that cause the seizures; there is enough static in there to make it nearly impossible to read ${his} mind. Or in this case, be influenced from the outside.
dunno how well this works if HB is riding shotgun inside their brain though. these moments are often (but not always) accompanied by sidestep's scar level increasing and/or a gate being opened
notably, rat king is Scared of you
You must have had a panic attack. You're five blocks away from the casino; you've walked past your pickup point. Is anybody following you? Your head is hurting too badly to scan for it. Instead, you try to jog the Rat King to life, finding… Nothing? You stop, a cold shiver down your spine, checking the life support…still green. Still alive. They are still alive. Your worried wave of concern prompts a small, questioning reply. [i]A tiny squeak. Barely.[/i] Are you okay? Are you? The answer is no, the Rat King is…terrified. Of you? No. Not anymore. That doesn't make sense.
so it might've been the imposter (or heartbreak?) briefly taking the wheel.
also, food for thought, from yoinking carter's memories.
It's hard to keep mental shields up under torture. You should know. You do know. Your helmet disguises the twitch on your face as you kneel down and take hold of Carter's face. Physical contact is not needed, but it makes it easier to focus. Pain makes it easy to slip inside because that's the brain's priority alarm. Unlike panic, which can shut things down, or fear, which can lock things into loops, pain opens everything up. All the gates. All the hidden rooms. Enough pain, and it's impossible to focus on anything but, leaving defenses crumbling and hidden secrets crawling out.















