Well this one probably wasn't because I could relate to it after explained.
Cleaning inside windows of a regular customer. They ask me to leave one bottom sash of a sunny bay window seat.
It was messy and smeared.
They then explained their beloved pooch , Doris, had suddenly taken ill and had been put down at the vets a couple of weeks back.
It was where she always sat and they had not come to terms with it yet. They were not ready to part with her dog slobber.