however, it is a public place. >> march, 2012. the number six train is headed uptown with a man and woman battling it out in a closed subway car. if you were there, what would you do? move away from the explosive melee? wait till the next stop and call a cop? or try to intervene possibly at great personal risk? >> i was just like, whoa, this is crazy. i quickly reached for my phone and started videotaping. >> well, without that response we wouldn't have our story, but then a new subway super hero comes to the rescue, snack man. >> he just seemed real cool. just walked right in there. kind of didn't say nothing to anybody. just walked right in, smooth, eating his chips. >> i was eating chips at the