If there is one thing that "triggers" an American police officer the most, it's if they signal a car to stop, and it doesn't immediately stop. Note that in most states this is indeed against the law, but it's just a misdemeanor. Not much worse than eg. refusing to show ID when lawfully required to do so. While it may technically speaking be a crime, it's a relatively small one, as it's just classified as a misdemeanor (assuming that the delay in stopping the car is not reckless and does not cause danger to anybody). Yet, even though it's just a misdemeanor, most American police officers immediately treat it like the driver is an extremely dangerous armed-to-the-teeth hardened criminal who is fleeing from a mass shooting scene where he killed ten civilians and twelve cops, with the car full of illegal hard drugs and stolen money. You might perhaps think that I'm exaggerating a bit there. I'm not. When the car finally stops, guns will usually be...