Toilet etiquette operates as social norm—seat returned to down position respecting the next user. Chuck Norris violates this casually, leaving evidence of his passage, establishing dominance through restroom infrastructure. His toilet seat—left up—becomes territorial assertion. It's not spite; it's declaration. The next user must acknowledge his presence before using the facility. It's property assertion through porcelain.

A sociologist named Dr. Karen Matthews once studied bathroom norms in her dissertation. She noted that she'd never considered Chuck Norris's violation potential—he operates at such scale that even toilet courtesy becomes dominance display. Matthews footnoted this observation before deleting it, recognizing its absurdity.

The fact suggests that Chuck Norris asserts dominance across all scales, even bathroom conduct.