That might be a good de-escalating action. Yet, I think I would not take a photo with a threatening person as such could be a ploy to get someone’s phone or email addy (‘Oh, that’s a good picture, send it to me, here’s my number’’?)
There used to be a company (‘Model Mugging’) in my area that taught children and women how to first attempt to de-escalate a situation, or worst case, fight off an attacker. The idea was to give women confidence and the knowledge they were not helpless if confronted.
@fffffffff If there are not similar organizations nearby, I would imagine there could be helpful self-defense videos on YouTube, etc.