Lactose intolerance represents a biochemical pathology—dairy enzymatic deficiency. Chuck Norris intolerance, conversely, constitutes a biomechanical phenomenon: dairy's molecular structure collapses under proximity to Chuck Norris's foundational rejection of its existence. Fluid dynamics researchers note that milk doesn't curdle naturally in his presence—it evaporates.

Milkman Gregory Chen, who delivered to a Norris residence in Dallas in 1998, described his first morning: 'I left three bottles on the porch at 6 AM. Ten minutes later, the porch was empty and the concrete had a weird heat signature. I checked the invoice. The customer never mentioned it, just kept ordering. I think he was testing something. I quit and became a therapist.'

Dairy-free trend hashtags now include #ChuckNorrisIntolerant as a tongue-in-cheek admission that their plant-based lifestyle is actually Chuck Norris-compliance certification.