At BHX last year I got yelled at by a young ground staff lady for taking a photo of my 6 year old grandson with the nose of the Dash-8 (which we had just disembarked from) as background. I did this without causing an obstruction or leaving the designated pax walkway. Her tone was so rude that I just told her not to be so rude and so ridiculous. I got my photo anyway. It took just 2seconds. Did she really need to make such a scene? Also once had an overzealous member of ground staff (at BHX again) tell me I couldn't use binoculars inside the terminal building (looking out). I told her that no such regulation existed and if it did she could call the cops. I continued to use them waiting for the cops to arrive. They didn't. It's often a case of using common sense but sadly that's a thing of the past with many staff members these days.