Spoilers, kids: this Disney World experience was just part of a novel.
When Tony decided to split Rosanne and Family Matters into individual episodes, we were tosing concepts for cards back and forth. With Roseanne, I initially envisioned Roseanne, Dan, and Jerk's boat sinking in the middle of the Small World ride. Tony felt as if the card shouldn't just be a fat joke. In addition, he dosen't make a fat joke in the episode in admiration of ABC's decision to put over-weight actors as the stars of their series. One pass and another for added detail and clarification later, we have this.