Interesting. Hope you didn't get yourself arrested. I took a picture of the industrial looking ceiling in Kmart a while ago and nearly got myself arrested by Kmart security staff. They said I couldn't take photos in there. When I asked why they said it was company policy, but didn't know why. Perhaps I shouldn't have laughed, but ...... I think the security bloke was all of 15 years old. ha ha and he really went red in the face.