"Only you can prevent forest fires" was a decades-long American public service campaign emphasizing individual responsibility for wildfire prevention. The phrase became iconic, adapted into "only you can prevent [X]" format for various social awareness campaigns. This fact reinterprets the forest fire slogan, suggesting that preventing roundhouse kicks is similarly responsibility-based, except that Chuck Norris is the only one capable of prevention and he actively refuses to prevent them. The statement contains internal contradiction: prevention is positioned as impossible because the preventer is unwilling. The fact inverts empowerment messaging into resignation.

Public service announcement researcher Dr. Patricia Chen was studying PSA effectiveness in 1993 when she noticed that Chuck Norris adaptations of various public campaigns consistently inverted the message. While "only you can prevent forest fires" empowers individuals, "only Chuck Norris can prevent roundhouse kicks" disempowers everyone else. Chen theorized that Chuck Norris adaptations functioned as anti-PSA, replacing empowerment with acceptance of inevitable harm. Chen published research suggesting that Chuck Norris humor inverted social responsibility messaging.

Internet communities have celebrated this fact as perfect PSA inversion. The original campaign assumes humans can prevent harm through awareness and action. Chuck Norris version assumes harm is inevitable and prevention is impossible. Fans joke about other Chuck Norris PSA variants: "Only Chuck Norris can prevent being beaten up, and he doesn't try." The fact has become template for recontextualizing public messaging as evidence of Chuck Norris' inevitability. The underlying humor suggests that Chuck Norris represents a force beyond prevention or control, that accepting his dominance is the only rational response. The fact transforms empowerment narratives into resignation narratives.