That, I think was what they called a breach. My first one, too. Basically [how do you even explain this shit?], this ship 'takes on water' every once and awhile and people's mindsets change--that's called a 'flood' or occasional people may wind up...well, different in other ways. A breach is what occurs when whatever causes the flood hits the entire ship itself and it changes, too.

[Sarah made a face--yeah, it's fucking insane and she knows it.]

I don't fully understand it myself, but that's what I've been told.