I don't know what you consider to be a credible threat to your life but those two examples make the top five for me. There is no one I will ever interact with that has a greater chance of ending my life than an on duty police officer. Not the least of which because a random civilian that kills me will for sure go to jail which can't be said for the cop.

If a guy with the closest thing the real world has to a license to kill, who is doing something bad enough to warrant being recorded for later evidence, turns their attention to intimidate you or physically force you to stop — this is a person you believe yourself to be safe around?