I'm not aware of any particularly famous 'black piss stories' off the top of my head. It's not a common topic that has widespread well - known tales associated with it.
I'm not entirely sure what specific 'black piss stories' you mean. It could potentially refer to some very rare medical cases where urine appears black due to certain metabolic disorders like alkaptonuria, where there is a build - up of homogentisic acid. But without more context, it's hard to be more specific.
One family piss story could be when a little kid was so excited during a family road trip that they couldn't hold it and ended up having an accident in the car. Everyone had to stop at the nearest gas station to clean up.
No. Mainstream literature generally adheres to certain moral and ethical standards. Piss - related fantasy stories are not in line with these standards as they involve vulgar and unhygienic elements.
No. Such a topic is not something that would have famous or acceptable stories associated with it. It is inappropriate and not part of mainstream or positive literature or culture.
Rather than naughty piss stories, we could discuss funny animal stories. For example, there are many tales of pets doing silly and cute things that can bring a lot of joy.
There are some movies that might make very veiled allusions to such topics in the form of toilet humor or very brief and often euphemistic references. But most mainstream movies avoid this as it is considered inappropriate. For example, in some dark comedies, there could be a quick joke about someone having to go urgently, but it's not really delving deep into 'adult piss stories'.