I was hunting around Square mountain in the Adirondacks. Got to the top and needed a little breath break, so I sat on a convenient log. I looked and saw an old woolrich shirt/jacket (you remember them?) folded up on the log. I picked it up and it fell apart and an old baggie sandwich bag fell out of it with some unidentifiable substance still in it.
About six months later I was talking to my brother and mentioned finding it. Turns out he took that jacket off about 15 years ago and set it on a log, with his lunch still in the pocket walked off and could never find it again.