One horror story could be when the nail polish doesn't dry properly. You think it's dry, then you accidentally touch something and it gets all smudged. Another is when the color turns out completely different from what you expected on your nails. It might look nice in the bottle but hideous on your nails.
One common horror story is when nail polish chips really fast. You just painted your nails all nice and then within a day or two, it starts looking all ragged. Another is when the color is not what you expected at all. You see it in the bottle as this beautiful shade but when it's on your nails, it's completely different.
Well, I once heard a story where a girl used a cheap nail polish. It started peeling off really quickly and some of it got stuck in her hair when she was scratching her head. It was a total mess to get out.
A common one is chipping. You paint your nails so nicely, but within a short time, they start to chip, especially if you do a lot with your hands. It looks really untidy.
There's no evidence to suggest that 'chanel nail polish fiction' is a new genre. Genres are defined by a set of common elements and themes that are widely shared among a body of works. 'chanel nail polish fiction' seems more like a specific and perhaps trendy topic that could be used in stories, but not a distinct genre. It lacks the broad - reaching and consistent set of characteristics that define a new genre.