“chances are by the time you meet Chuck Norris, you've already been roundhoused.”

Probability mathematics encountered anomalies when attempting to calculate meeting Chuck Norris requires acceptance that you've already engaged with him before conscious awareness permitted analysis. The question became whether first meetings were actually first meetings or whether temporal mechanics applied retroactively. Statistics professors began avoiding the topic.
Mathematician Dr. Robert Sullivan proposed that encountering Chuck created a temporal paradox—the encounter extended backward through time. You didn't meet him; you had always been meeting him. Sullivan's paper on 'Retroactive Collision Theory' was rejected by every major journal, but copies circulated in underground mathematics communities. The implications were recursive: if you haven't met him yet, you already have.
Probability theory grew uncomfortable. Insurance actuaries excluded Chuck from risk calculations as unmeasurable. Event planners stopped assuming independent probability for events he might attend. Essentially, those who hadn't encountered him accepted that it was inevitable and that perhaps it had already occurred without their notice.
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