Here's why:
* Divorces in cartoons: Divorce, a sensitive and complex issue, was rarely directly addressed in cartoons aimed at young audiences during the 1980s. Cartoons focused more on lighthearted and fantastical themes.
* Specific imagery: The combination of a tightrope, lost coat, and pizza is very unusual, and unlikely to be found in a cartoon about divorce.
* Lack of online evidence: A quick online search doesn't yield any results for a cartoon with this specific description.
It's possible you're remembering a dream or a combination of different elements from various cartoons. If you can recall any other details, such as the cartoon's style or the names of any characters, it might help narrow down the search.