That's the most arse about face view of the situation.
You have a perfect right to be a k n o b, as does the security guard, the rest of us are saying we'd rather exercise our right to be friendly

.
We've found out throughout our lives that although you can go along sticking to your guns and knowing that you're
right, it makes just as much sense to be friendly and cooperative, in fact, if you want your own way sometimes, being nice and polite will get you further than stamping your feet and demanding your
rights.
Just an observation.
It might be a Northern thing, but striking up a conversation with a total stranger who's shown an interest in my camera is a perfectly ordinary thing to do, whether that person is a policeman, security guard, stranger in the street, fellow passenger on a bus, guest at a wedding, just anyone.
Of course, if someone speaks to me in public - I have a perfect
right to be an obnoxious a r s e and completely ignore them.
Your
rights - your choice

. My
rights, they're perfectly intact, and waiting for a time it makes sense to exercise them

.