In our Introduction to Concealed Carry course, we use the February 22nd, 2018 surveillance video of Tyrone Lee robbing the Forest Acres liquor store in Tulsa, Oklahoma. In the surveillance video we learn a lot of lessons.
Experience is the best teacher, I believe, but the good news is that it does not have to be your experience.
After you've seen it all, take a look at John Correia's Active Self Protection commentary. He does a great job of explaining what could have been better and what could have been worse.