« on: April 20, 2014, 10:53:17 PM »
To the OP, I think I speak for many photographers when I say that photographing people, esp anonymous people in public is somewhat akin to public speaking and can be unsettling and a little scary sometimes. It takes confidence and nerve.
You can't control the other guy, but you can control yourself. It's up to you to keep the encounter positive and not play (into) his game.
I photograph school events, swim meets, boy scouts, church stuff, etc. I have always tried to keep an attitude of confidence when I shoot these things. In other words, I shoot like I belong there and I'm shooting for a purpose. It doesn't matter if I am shooting for an official purpose or for my own purpose. If I am approached, I simply respond that I am shooting pictures to share with everyone (parents usually) for them to have of their kids. It rarely goes past that. I am very accommodating and cheerful about it. I offer them my card and make sure they know how to see all of my pictures on my zenfolio page. There they will see thousands of images of many different things that include kids. I treat any inquiry like I assume they are interested in my images and want know how to obtain them.
If they are negative or accusatory, I pretty much just act the same way, like I've done nothing wrong and if I stop, one or many people will miss out on the results of my efforts (that I offer free of charge). Depending on the event and my level of desire or the importance of the images, I might elect to stop or I might elect to get someone of importance involved to shut the jerk up.
The difference in my usual situation and your stated situation is the anonymity and lack of a connection to a purpose except for your own enjoyment. Unfortunately, in this day and age cameras make people nervous. Blame it on the negative media, rude and invasive paparazzi and unconstitutional ordinances/laws against public photography. I would have given the guy my card (without an address). What pervert up to no good offers to share their identity? I might have offered to share the pictures but I also would have explained that I'm simply enjoying the day like anyone else and not breaking any laws. If I had to pack up and leave to diffuse the situation, so be it. But I would have tried my best to turn it around and put the guy at ease first because it's in my neighborhood and I'm likely to see the guy again.