The Simpsons: 10 Important Details That Are Almost Never Mentioned

It's easy to forget that Lisa's best friend in the show's earlier seasons was Janey, who was steadily phased out as the series went on to the extent that she's basically a background character these days.

Though Janey and Lisa's friendship was hardly a flawless, conflict-free one - Janey memorably mocked Lisa for becoming a vegetarian - a concerted effort was made by the show's writers to downplay their interactions without ever offering an explanation as to why.

Obviously it's incredibly common for friends to naturally drift apart during their formative years, and Janey certainly wasn't ever a frontline fixture in even the show's earlier days, but it's still a little odd that their apparent rift was never categorically addressed on-screen.