A couple of times I've managed to defuse TSA officers after they're convinced I'm not a danger to the country, and they turn into humans again. Once I was visiting just to meet a friend and we were planning on a road-trip up to Canada. The officer quizzed if we were going in order to do drugs (which is a thing apparently?), and when I answered in the negative he sighed, said "ah, I was young once too" and let me in...