Mondelēz International, the $36 billion parent of Toblerone, Cadbury, and Côte D'Or, has filed high court proceedings in London against Catherine's Originals — a vegan chocolate brand founded by a teenager in 2021 that makes its bars in Walberton, Sussex. The claim: trademark infringement and passing off, because the O'bar features rounded semi-oval humps along its length that Mondelēz says too closely resemble Toblerone's iconic triangular peaks. The scale mismatch is stark. Catherine's Originals sells 200g bars at £9.20–£10.55 through markets, online, and subscription. A standard Toblerone costs £2.50 at a supermarket. These products occupy entirely different market segments — one is mass-market confectionery, the other artisanal vegan chocolate at nearly four times the price. The odds of consumer confusion are, charitably, thin. Mondelēz says the Toblerone shape has been a hallmark since 1929 and it has "a responsibility to protect our trademarks." This is technically true — trademark law requires active enforcement or rights can lapse. But the enforcement is doing more work here than the confusion. Catherine Dodd says the O'bar's shape reflects the O in Originals, and her legal team at Brandsmiths insists the design has its own distinctive identity. This is not Mondelēz's first shape fight. In 2017, Poundland was forced to delay and then redesign its Twin Peaks bar after a legal warning over its dual-humped profile. Poundland modified the packaging and shape; the bar survives today. The pattern is clear: Mondelēz uses the credible threat of litigation costs to force smaller competitors into compliance, regardless of whether actual consumer confusion exists. Dodd described the experience as "fairly frightening for a small business" — and that fear is the mechanism. A high court trademark case can easily cost six figures to defend. For a kitchen-table operation selling £10 chocolate bars, the legal fees alone could be existential. Mondelēz doesn't need to win in court; it needs the threat to be expensive enough that settlement or redesign becomes the rational choice. The broader dynamic is one of shape monopolization in consumer goods. When a corporation can claim ownership over geometric primitives — triangular peaks, rounded humps — applied to a commodity product, the IP system is functioning less as innovation protection and more as moat-building. Nobody is buying a £10 vegan pumpkin-spice bar thinking it's a Toblerone. Mondelēz says it attempted to resolve the matter "constructively and directly" over several months before filing. That framing obscures the power asymmetry: months of legal correspondence from a multinational's IP team is itself a form of economic pressure on a sole-founder business. The court case is the escalation, not the beginning.