From what we can tell from a YouTube video, some men, or boys, engaged in a bout of fisticuffs on the Metro Light Rail earlier this month.
That fight was eventually broken up by an apparent ninja-wannabe -- or maybe an actual ninja, we're not sure what the qualifications are -- who pulled out a friggin' sword.
According to the person who uploaded the video, this happened around 2 a.m. on October 6, at Central Avenue and Camelback Road.
KTAR, which found the video, says police weren't aware of this incident. A Phoenix police spokesman confirmed this to New Times, saying there are no reports around that time or location.
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Check out the video below, and notice the genius who tried to grab the blade of the sword: