I'll bet there's a 3d model of the refinery on google earth :)....

I've had that before, taking pictures of an APC at play on salisbury plains some disgruntled squadies came over and gave me a grilling, luckily enough at the time I could pull rank (working in the security services) and tell them to go hang unless they could tell me exactly what I'm not allowed to photograph. To make the fun even better I dropped the film when changing it the next day and had the pleasure of watching it roll slowly (but not slow enough for me to catch it) down a river bank into the thames so the twenty minutes of arguing (including with their staffy) were pointless.

I've also had the fun of kayaking down a river, turned round to take photo's of the guy behind coming over a drop while I drift a fairly flat spot to suddenly feel a thump in the back, some nice man had stretched barbed wire across the river. My lucky escape was that I was (by chance) wearing my instructors kit rather then my lightweight gear so I had a Letterman on me and could snip the wire before it started draggin me downwards. (If you haven't played much in rivers - generally something on the end of a string or rope (or barbed wire) placed in moving water tends to submerge :(. )

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Toolset: Blender, GIMP, Indigo Render, LuxRender, TopMod, Knotplot, Ivy Gen, Plant Studio.