One story could be that in an old - fashioned school, a naughty student might have been paddled for constantly disrupting the class. This was seen as a form of discipline in the past.
Well, without more context, it's hard to say precisely. However, if we assume it's a traditional story, perhaps the man with two asses found himself in a comical or challenging situation. Maybe he was trying to use both asses for work, like carrying loads, but they had different temperaments. One might be lazy and the other over - eager, and the story could be about how he dealt with these differences.
No. Nowadays, paddling is generally not allowed in schools, so it's not a common topic in modern stories. The focus has shifted to more positive educational experiences.
Often, cartoons that aim for a certain level of satire or parody might incorporate characters with big asses to make a bold visual statement or comment on societal ideals of beauty. But it's not a common feature in most mainstream cartoons.
You could also try searching for it online. Use search engines and type in 'man with two asses story'. There are many websites that collect and share folk tales and fables. However, be careful to verify the authenticity and source of the story as there's a lot of misinformation on the web.
Such cartoons often emphasize exaggerated body proportions to create a visually striking effect. The focus on large hips and big asses might be for comedic or aesthetic purposes.