The LA riots gave some good lessons.

Situational awareness,ie,dont drive into groups of people. The Koreans that stood on rooftops armed seemed to have protected themselves and property without killing people,so caliber wasnt the deciding factor but apparently armed was a help.

I dont recall them killing people or trials in the aftermath so I guess the suppressive fire was helpful?

Lesson i got was avoid crowds and be prepared to defend your family/property actively.And dont think of it as an excuse to play Rambo and start killing people.