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OH. MY. GOD. The ultimate validation nightmare just slapped us across the face! Someone literally crossed out "NaN" on a price tag and wrote "6.89" instead. This is EXACTLY what happens when your JavaScript tries to do math and has an existential crisis! 💀
The poor cashier was probably like "What in the floating-point catastrophe is THIS?!" and just manually fixed it with the determination of someone who's had ENOUGH of your undefined numerical shenanigans. Honestly, it's the most aggressive hotfix I've ever seen in production. No pull request, no code review—just a pen and PURE RAGE.
