My first official job was bagging groceries in a small town supermarket at the age of 16. One of our regular customers was an elderly, morbidly obese lady who smelled so putrid it made your eyes water. No one's gag reflex was safe in her vicinity. We simply called her The Cat Lady.

She wheezed constantly, and could barely carry herself to walk properly. "Put them there", she gurgled and hissed at me the first time I had the honor of carrying her 10-12 double-paper bags of cat food out to her stationwagen. She never said another word to me over the course of the next year I worked there, and I ended up stuck with her every time because the other baggers all wimped out, either actually vomiting or throwing a fit to get out of the task. I didn't blame them, really. It was truly awful.

What was going on in that car made the OPs pic look immaculate. The entire car except the driver seat was stuffed to the ceiling with junk, mostly trash. It was like buying a garage sale outright, stuffing it into your late 70s stationwagen, then hitting the fast-food drive-thru's enough times to fill every nook and cranny with filth. Stuff was rotting and molding, and had obviously been in there for years. It brings sweat to my brow just thinking back about it now to be honest, but here goes...

There was one spot in the very back where I would stack the bags of cat food after carefully opening the rear door. More than once I saw rats in there, scurrying away through tunnels and crevices in the garbage as I opened the car door. Everything was peppered with rodent shit. It freaked me out, but no one at work wanted to believe me, nor were they willing to see for themselves due to the stench.

She lived in a trailer house with a bunch of cats. No one really knew her or how many cats she had, but it was too many, and she was in no condition to actually care for them properly, let alone herself. She had eventually surrendered all the rooms to cat shit and trash, resembling her packed stationwagen parked outside, except inside it was cats, not rats. The rooms were littered with the empty cat food cans and other trash and rotting detritus of her life, all coated in cat piss and shit.

Of course things came as they do and she died in there. Rumors around town were that the cats were eating her when she was finally found, dead in bed. I don't know if that was true or not, but the story doesn't end there.

The property owner had to get the piss soaked, shit filled trailer house off the property. There was no way anyone was ever going to live in it again. It was rotten to the core. He hooked it up to a truck to presumably have it towed out in the county and torched. A few blocks down the street, however, in a main intersection, it collapsed into a cloud of deadly stench and fell off the truck, breaking into pieces and spewing shit in all directions. People vomited, people ran for their lives. Eventually, it had to be cleaned up by a guy on a backhoe wearing a mask. The intersection smelled for weeks. Even months later we would sometimes detect a hint of it.

TL;DR: A car full of rats, a house full of cats, a dead old lady and an intersection full of putrid rot.