9mm I have not herd back from them on the two incidents. Both happened several years ago. One was a guy with a bad case of road rage. The other were some guys triangulating me at night. The second was in an area where two other people that worked for the same company had been robbed. Both described similar situations happened before they were robbed.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.