I have a similar story. I went to the grocery store, got home, and DH unloaded the car for me. After I had put everything away, I told him I knew I had bought a couple chickens. He went back out and looked again, then decided I must have left them in the grocery cart. (I have a tendency to do that if the sacker places anything on the bottom of the cart.) A few days later, I started smelling something. Searched the car from top to bottom, and found the chickens in the far back corner of the trunk. Luckily, they hadn't been smelling long enough to ruin the car.