Some of the most intense football rivalries in history began not because of geographic proximity or historical competition, but because of a single incident, a bad call, or something that happened decades ago that nobody can quite remember accurately anymore. This episode traces how rivalries become irrational and almost mythologized, examining the gap between what actually happened and what the away end believes happened. We're looking at specific cases where rivalries were invented or exaggerated by supporters themselves, becoming more real through repetition than through actual historical events. The conversation explores how away end culture specifically amplifies rivalries because the away experience is inherently confrontational — you're literally traveling to enemy territory, which makes the rivalry feel visceral and personal even if it's completely arbitrary. We examine the mechanics of how a single moment (a bad tackle, a controversial goal, a goalkeeper's celebration) can crystallize into generational hatred that survives longer than the people who witnessed the original incident. There's a deeper historical layer about how rivalries function as identity markers — supporting a team isn't complete without knowing exactly which other teams you hate and why, even if the reasons don't hold up to scrutiny. The away end thrives on this irrationality; the more nonsensical the rivalry, the more passionately it's defended. We'll discuss how modern social media has weaponized these rivalries while simultaneously making them more performative, and how younger fans inherit rivalries they have no emotional memory of, maintaining them purely through cultural transmission.