Sky s

I nearly ran foul of shopping centre security taking this. I had permission from the Sky rep , he said it was ok with him but the centre management didn't allow photos without their permission. A few minutes later, while killing time waiting for Mrs T, I was looking at the 3 images that I'd taken. I was approached by security,"was I taking photos"? I was able to say, quite truthfully that I wasn't, I was merely looking at what I had taken earlier.
It was suggested that I replace the lens cap so that I wouldn't be bothered again!
What on earth are these people worried about?

Thanks to WetcoastBob for organising this challenge.