[nkurz]

> No one in this world is training to fire a "warning shot".

I'm not sure if you are correct. See this Wikipedia article and search for "warning": https://en.wikipedia.org/wiki/Police_firearm_use_by_country

It looks like several European countries have an established policy of firing warning shots. Denmark at least legally makes them required.

[Alupis]

Perhaps there is some police force that does this, but I'd really like to see how a "warning shot" is defined, because it's incredibly reckless and dangerous to fire a shot at anything, let alone a randomly chosen surface with people around.

The bullet doesn't just stop... and firing at someone that also has a gun is a surefire way to get them to shoot back.