I was in the Metra station and wanted to photograph a paladian window; a security guard told me that photographing is not allowed in the building. The place is full of fast food eateries and retail shops, yet he claimed it was for security reasons. Ridiculous! I had fantasized about photographing some US Navy sailors running to catch the train back to Great Lakes Naval Station before their cinderella liberty expired, but I gave that idea up.
I'm thinking of buying the smallest digital camera that has no shutter lag and photographing surreptitiously just for spite! Of course, that type of behavior would make me very suspect.