Got into a spot of bother today...
I was attending the Sundance film festival in London today, at the O2/Dome: as it was World Pinhole Day I had my Harman Titan with me. Part of the interior of this massive space is currently vacant and I thought it would make a nice subject for a pinhole photo.
Alas, I was spotted as a clearly suspicious individual by a pair of security guards. As I took a light reading with my iPhone I was approached. They informed me that, as it was private property, I was not allowed to take a photo of the structure of the interior. It was ok for me to photograph friends within the public spaces of the interior, but not the vacant space.
I asked to see the policy but they were unable to oblige. I then asked them if I could photograph the space, rather than the structure.
To my surprise, they were happy with this. So I took my photo (not developed yet - it's not digital, you know).
Incidentally, when I explained I had a pinhole camera, one of the guards said how much she liked these cameras, though she admitted she didn't know what one was. We parted on extremely amicable terms.
So, maybe worth a try: the next time someone stops you from photographing something, explain you're just after the effects of light and shade in the space itself....