I am, amongst other things, a videographer. I carry at least one camera at all times, sometimes as many as three. I record all types of things. Riots, swat raids, civil disobedience, protests, checkpoints, traffic stops, meter maids, legislative hearings, court appearances, my own rants, even the occasional violent crime.
The truth of the matter is though, you’ll never see most of my recordings for the simple reason that nothing happened. Usually, the camera comes out because of some indication that something might be happening, and then nothing happens. Sometimes that’s because I was wrong about something about to go down, other times it is because the camera dissuaded somebody from doing something terrible.
Other times, things get very scary. Recording people can be very dangerous, and it might not be for you. Sometimes people don’t want to be recorded because they are just plain camera shy. Other times they don’t want to be recorded because they are in the middle of something very personal. Other times they don’t want to be recorded because they are doing something terrible and don’t want to be caught.
Sometimes they just walk away, sometimes they complain verbally, other times they attack.
Short of omniscience, a feature not available in my version of Android, I have no way of knowing in advance what the case will be. So when I sense something might be happening, I begin recording, and wait to find out.