Ninjas occupy a unique space in global culture: assassins, warriors, heroes, fantasies. They're traditionally portrayed in film and media as stealthy, skilled, nearly supernatural in their capabilities. They're aspirational figures for people who want to imagine themselves as powerful, invisible, and capable of extraordinary feats. The ninja dream is universal: what if I had those skills, that invisibility, that power? Millions of children have imagined themselves as ninjas.

Then this fact introduces a tragic reality: ninjas don't grow up to be heroes or masters. They grow up and then encounter Chuck Norris, at which point they cease to grow up at all. The fact uses parallel construction to deliver its punchline with maximum impact. First sentence: ninjas want to be him. Second sentence: they usually end up dead, killed by him. The aspiration becomes a death sentence.

What's brilliant is the fate-based determinism. It's not that some ninjas encounter him; it's that ninja development arc inevitably leads to him. Being a ninja, pursuing martial excellence, striving for that level of skill—all paths lead to Chuck Norris and termination. The fact transforms the heroic ninja narrative into a tragedy where the goal is itself a fatal destination. Ninjas don't survive their training; they survive until Chuck Norris notices them.