Thanks! I have been mired once through my own stupidity, fortunately not badly, not in very cold weather, and not out of cell range. Mississippi River wetlands north of St. Louis (Army Corps of Engineers land) - I walked on vegetation tufts, then sank in to my knees, had to sit down, dig out, and crawl out on my belly, all the while holding my camera up out of the mud with one hand. Basic training without the barb-wire! Some other birdwatcher came by while I was walking back to my car and doing my "Thing that came out of the swamp" imitation. Cleaning up the silt mess on camera, clothing, tripod, car, etc - PITA.