The OP is enormously useful, and the diversion into "you can't keep me in!" shouldn't sideline us from the core premise: There isn't just "fight-or-flight" in our mostly-hard-wired response inventory: it's "fight-or-flight-or-freeze."

It's worth thinking about how to a) not freeze except on purpose, and b) how to assist people who freeze into a more survivable situation.

This is something that emergency responders must face, with people in high-stress situations "locking up." This is not new; they are surely trained how to handle this. How do you recognize "freeze-up" and how do you respond?