The following scenario is inspired by those stories about strange men and women who take it upon themselves to quiet down "obnoxious" toddlers in Walmart and other public places by slapping them, and end up with assault charges.
You're in a restaurant with your wife and 18-month-old toddler. The kid is sitting in his high chair picking at his food and in between bites makes some noise with their plate against the table and occasionally yells to grab parents' attention. Not an out of the ordinary dining experience with a toddler.
A man a few tables over turns and orders you to control that baby of yours and stop the noise. You politely say they are out of line and it's just a toddler enjoying a family outing and that really the noise is not excessive, and turn your head back to your family's table. A few moments later the man again raises his voice and demands that you "quiet down your kid or else I'll have to do it for you". Again you politely ask the patron to mind his own business and if he chooses to complain, they should involve the restaurant manager.
The man is now furious. He gets up from his chair, says "I warned your sorry a**. Someone needs to teach this kid a lesson here" and begins his approach towards your family in a threatening manner.
Do you draw and order him to freeze? What if he continues towards your kid? Clearly there is disparity of force. It could be a Walmart-style slap on his cheek or a deadly blow to your kid's head.
What do you do?