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.
Check out the video below, and notice the genius who tried to grab the blade of the sword: