One never knows till one is in the moment. I watched a wave grab a child. As it happened we both came back out, but it was neither or both, that's how we're wired.

As a professor one of my students had a seizure then stopped breathing, during one of my exams. There were fifty students closer to her than me, yet somehow I found myself giving aid, as everyone else either dialed 911 or swooned "there goes my professor!" There was that second where all these thoughts went through my mind, but then she started breathing.

As for false accusations, there's a principle that accusers should understand but don't: NEVER assume you're the craziest person in the room.