Showers use water to remove dirt and maintain cleanliness. A sandblaster uses pressurized sand particles to remove paint, rust, and corrosion from surfaces. Describing a shower as using a sandblaster suggests that Chuck Norris's cleaning routine requires abrasive particle velocity rather than water—not washing but erosive material removal. His hygiene involves equipment designed to strip surfaces.

Dermatologist Dr. Patricia Wells reviewed a case file in 1996 describing unusual superficial tissue degradation in an unidentified patient. The pattern suggested repeated exposure to sandblasting-equivalent friction. Wells couldn't establish causation and closed the case.

Water cleanses gently; Chuck's shower is violent surface modification. The implication is that his body is so altered that standard cleansing would be inadequate—he requires aggressive mechanical action just to maintain his own skin. His existence is abrasive even to himself.