Why did Quentin behave like that? Because he survived 3 traps?!!!!
Everybody here keeps asking
SPOILER
why did Quentin, the apparent good guy/hero, become the villain.
And while some have provided good replies (personality, job, character flaws, tension, etc), everybody has missed an obvious one: the fact that he has survived 3 traps.
Think about it:
- The traps once triggered seem inescapable
- Nobody else (that we know) but him has managed to survive a trapped room (after tripping the trap)
- Since they are practically inescapable, being subjected to one and surviving is akin to being put through a mock execution.
See the point? There's a reason why mock executions are considered psychological torture.
After 3, is it really a surprise that the guy snapped (and turned against anyone whom he perceived as an obstacle)? A person's mind can take only so much.