Trespassing!

My general rule is this - no "No Trespassing" sign in the vicinity then it's free game. I'm not sure this strategy will hold up in court, hopefully I never get a chance to test it, but as we were shooting at the top floor of this beautiful abandoned house a voice yelled from downstairs, "WHO'S HERE?"

Obviously this gentleman was upset, we were intruding on the house his grandfather had purchased in 1918, five short years after it was first built. But when he turned the corner and saw what it was that we were up to he suddenly became our best friend, after a brief history he left us with an admonition to be careful, and we were.