I have a 1-liter water bottle that really bugs me. I use it to hold my trips supply of rum or vodka and for one I think it has feet.
It seems every morning I wake up it's gone. Some mornings it sitting out by the fire ring, other mornings it's out by the water laying next to a perfect rock to lean back against and watch a sunset. Sometimes it's laying in the bottom of my canoe with my coffee cup, half a wet cigar and fishing rod.
What really gets me upset, the darn thing leaks. When I finally do track it down, it's short a few ounces from the day before....