Ugh, whatever. At least you fixed it. Maybe location is irrelevant, maybe it isn't. What if some of what happened was brought on by hallucinogen? Or Neuro-toxin? That sort of thing could be spread through air vents and might only have effects on certain blood types or other factors. While there's no proof that's what happened, confirming location and comparing it with what else we know IS helpful. I'm not saying it's my only theory, but at least figuring out if it is or isn't a valid one is helpful. I'm TRYING to look for patterns too, okay?! Geez.

It could just as easily be some kind of low-level broadcast or something. Sound can have a huge effect on mind and body. In which case location would also be important as they would either be nearby one of the announcement boxes or decreasing/increasing from the point of origin of the broadcast. See what I mean?

Anyway... yeah, the other person pretty much said what I was going to.