I've got some of that in the Fridge right now actually. Just keep forgetting to carry it out with the garbage and sure as hell won't put it in the garbage.
Oh, and if you haven't figured it out yet, don't leave that out on the counter like that for long. As it warms it will build up pressure. It won't take long for that lid to pop off. And then you'll never get the scent out of the room.
Not that I know anything about expired milk or anything.