"zip lock" news and stories

Alright, Slashfoodies. I have another strange occurrence for you to explain, one that makes the butterscotch cookie mishap seem like nothing -- one that makes me wonder if I've stepped into the kitchen version of the Twilight Zone.

Above, you can check out a slightly blurry (sorry!) picture of my freezer. Since I recently roasted up a chicken, I also made myself some delicious stock. The other day, I got to packaging it for the freezer, and threw most of it into three zip lock bags. I stacked them on the base of my freezer, as shown, so that they could freeze flat and then be moved around.

A day later, the bottom bag was hard as a rock, and the other two were merely very cold and jiggly -- no ice. Confused, I rejigged the setup -- the bottom went on the top, and the door was closed. When I checked again, the new bottom one was now frozen, and the other two were jiggly. Aggravated, I took the picture you see above, and then rearranged a bit and moved one of the bags up to the second shelf. As of now, the one jiggly bag is starting to slush and freeze.

What on earth could cause this? It sure isn't thawing -- the rest of the inhabitants are solid. It's not over or under-packing the freezer, because I've done similar before in emptier and more full freezers.

Please solve this mystery and save my sanity!