I kinda figured that was why this came up.
In defense of my ill-omened little cache, I think Dan was on the receiving end of some particularly bad luck, but it wasn't from the local bums. (Though there's some signs of them if you keep heading north, I've never actually seen any unsavory characters down there... just guys from the neighborhood walking their dogs.) Beyond that... well, even if you didn't catch that it's in an abandoned section of the park from the description, you can't help but notice that when you start heading for it! Plenty of time to change your mind and turn back if you don't like the looks of it, same as you'd do if you were looking out across three hundred feet of thorns and poison ivy while wearing shorts.
I'd imagine that works in general -- anything in a sketchy or isolated area is probably going to look, well, sketchy or isolated.
(Not that safety isn't worth considering, of course! I intend to move Dry Bridge to a safer-looking area when I replace it, in the hopes that Dan's unfortunate encounter won't scare every potential future finder away.)