My wife and I were doing a series at a local college, climbing around in the bushes and trees by the entrance when security pulled up. The gentleman got out of his truck and asked what we were up to, after a quick explanation of caching, he just chuckled and wished us luck...followed by telling us this was the only one in the series he hadn't found yet! On our way out of campus he stopped us again to ask if we found it, unfortunately we hadn't...he said "dang, I was gonna ask you to go back so I could finally log this one"