Here’s a very interesting article by Jeff Gonzales posted on Shooting Illustrated regarding things you need to consider as you look at your personal safety and defense.
The article states that managing a potential threat is best done before the threat reaches your “contact” distance, and ideally when they’re still well within the “far” area to give yourself better options. Here is an illustration to explain.
These concepts are particularly appropriate in the holiday season where we are liable to spend more time in close proximity to people while out shopping or during holiday social events.
Read Jeff’s article: Personal-Defense Preparation: Considering Worst-Case Scenarios