I don't know why you folks keep razzing me about the wires. The proof is here below in one of Bob's photos and also has happened in some of mine. Think you have to be at or around a 45 degree angle to their point of contact with the building.
http://www.lighthousekeepers.com/forums/Forum5/HTML/000515.html

Dave, this kid has a camera like Heather's and it works great. I recently saw one with a 140 zoom in a local discount store for something like $135. Am thinking about getting it.