Knowing Four, if he were to try anything out, he would've researched that thing to hell and back. He probably has at least 20 wikipedia tabs open at once. He likely had lengthy conversations about different strains and their effects and safety with Legend (and blackmailed him to not tell anyone). Then, if Four decided he did want to try something to quiet down his brain and went to Shadow's place to try it out only to end up triggered and hating it? Ouch, poor guy. I feel like as soon as the effects kick in, Four's curling into a ball and hiding in either the smallest nook he can squeeze into or just the corner of the room and dissociating hard. Shadow needs to constantly assure him that he's safe, that nobody's going to take advantage of him, that it'll pass and he's going to be okay. Just sits on the floor with Four a respectful distance away and keeps talking until Four falls asleep or sobers up. Just a hypothetical, sorry if I spoke insensitively or mischaracterised them
Omg there are literally a thousand ways to look at Four's character, there is no need to apologize. Especially as the boy that I have fleshed out the least for you guys, you are absolutely within your right to let your imaginations run wild.
Honestly, in this situation I'm not sure Shadow is the very best person to reassure Four. Shads was there for things that were... less than pleasant for Four to experience. But Four wouldn't say anything to him about it. He'd just shut down. And Shadow can tell the INSTANT that dissociation sets in, because he's unfortunately seen it before and perhaps even caused it. And so he makes a phone call.
And the murder manβ’ who lives across the street knocks on the door less than 15 minutes later wearing his studded leather jacket and most menacing boots like he's about to go out on a messy job. Shadow gestures into the living room, and Dark doesn't make a big deal about it. He sits down on the floor right in front of the end table Four has wedged himself beneath, leaving enough room for him to get out if he wanted to, and he gets as comfortable as he reasonably can. He and Shadow banter like normal, Shads orders takeout as payment, and eventually the table and lamp stop vibrating now that Four feels like he has someone else watching out for him.
A third pair of eyes helps his paranoia enough that Four can sleep it off. And he kind of feels like an ass afterward. He apologizes to Shadow, who waves it off as he goes into the kitchen to heat up whatever he had ordered for Four.
