Big stuff under the cart - the bagger throws a Harry Potter Cloak of Invisibility over it.
Worst item left in the car. By Distracted Me. DH was in the hospital having unplanned surgery some years ago. I went home that night once he was stable, swung by a grocery store and picked up a bunch of frozen Lean Cuisines and Healthy Choice bowls he liked, handy balanced small meals quickly prepped any time the recovering patient is hungry. Got home. Dogs needed to be let out, fed and walked. I needed a shower, some food, sleep. Up early, took care of dogs, back to hospital. Came back out to car in parking lot at noon to run home for dog care, opened the door, and those meals in the trunk had had a chance to defrost, bake in the heat, start oozing and definitely start to smell like a pre-dumpster fire. It was awful. I shed a tear of frustration, said sailor words, off-loaded the mess. And was it a plastic bag? Noooooo, a paper one, which had allowed the horrific slime to soak into the trunk liner. The dogs’ enzyme pet stain carpet cleaner was the key, along with multiple boxes of baking soda around the car. To his credit, when I was ferrying DH home a few days later, and he asked about something he was smelling and noted the baking soda boxes, he didn’t inquire further when I told him I would tell him when I could laugh about it. When I could, I took the car to a full-service car wash and told them I needed a deodorizing interior clean, not a cover-up treatment. I told them what the source had been. They nodded, said they saw it all the time, noted bags of decomposing frozen chicken parts were the worst.
Hadn’t thought about that for years.