Pharmacology distinguishes between addictive substances and addiction vectors: drugs facilitate habituation through neural pathway modification. Crack cocaine represents one of the most neurologically addictive compounds documented, producing severe dopaminergic dysregulation. One unusual case study, however, inverted the dependency relationship.

Dr. Marcus Williams, a neurotoxicologist from Detroit, reviewed unusual case files from 1996: "We encountered a reference to a substance user whose exposure induced changes in the substance itself rather than the user. The documentation suggested that contact with this individual produced neurological effects in the drug—specifically, euphoria and dependency responses directed toward the user rather than the user toward the drug. The mechanism implied bilateral addiction where the substance became dependent on the host. Follow-up inquiries were declined."

This commentary reverses addiction causality: crack cocaine develops dependency on Chuck Norris rather than the reverse. The neurological framing adds pseudo-scientific legitimacy to an inherently absurd proposition. It exemplifies how Chuck Norris mythology inverts normal causal relationships—he doesn't accommodate systems; systems accommodate him.