My wife had a friend in high school who went grocery shopping and came home, quite disappointed that the store didn't put the roaster chicken he purchased in the grocery bags. As time went on, the car began to smell worse and worse until after six weeks or so it was impossible to be in, even with the windows wide open. They found the chicken - the bag it was in slid down into a tire well in the trunk. Apparently, given sufficient heat, humidity, and time, roaster chickens liquefy.