At the point that a law enforcement officer is ready to kill, they're not going to get much intelligible out of me at all, since I would panic myself right into a face full of lead, and joining the disproportionately high statistic of people with mental illness massacred by law enforcement for no good reason.

Asserting my rights would be at the point I find myself detained and they're asking me questions, at which point, I'd hope guns might no longer be involved. But I expect a dark room, hours or even days of detention without food or water might be involved. Black sites and enhanced interrogation might be as well, since it's not easy to extract a confession from an innocent man, but the Reid technique insists they try.