User blog:763492/Question about "We're Scrooged"

In the opening credits of HTF episode "We're Scrooged", why a there's a tagline says "Based on a true story..." shows up after we see the title of a cartoon? Is it because that cartoon was inspired by the real-life event where some owner of his gift shop who kill his employee to pieces so he could sell his worker's body parts to costumers for money until he accidentally got poked in the eye by a spinning top and then got crush to death by a shelf, a safe and a large piggy bank after he tried to get one last body part of his worker's from the top shelf? That sounded scary if it's true. Is that where the idea of a cartoon came from?