OK, this speaks to my point. Leaving should always be a weighed option. It's important to choose your battles.
For someone who is out to make a badly-needed point, who is prepared, who welcomes the challenge, then it makes no sense to leave. But someone who is trying to enjoy the park and the nice day and who routinely carries a fire arm, it's an issue of SA and not becoming 'rooted to the scene' and having blinders on.
If I go to the park 100 times and never have a problem, and one crops up in the 101st time, I think I'm going to leave, or go elsewhere, then come back later and have another 100 visits go smoothly. But sometimes we get defensive and want to 'push back' when it isn't in our best interests. If that's the case, go armed with information, a recorder and time to confront, don't get 'caught' and end up paying more than it's worth at the time.
IMO