>> because it's a heavy commuting hour, the bus is extremely crowded. and when it pulls up to the next stop, there are hardly any seats left. >> a lady gets in and there's only one seat left open in the back. and she has got a couple of bags and she tries to sit down. and the lady that's there doesn't want to give up the free seat where she has her bags. >> the two unidentified women argue and eventually the woman who is standing is allowed to sit down. but not for long. >> the other lady starts yelling at her that she's too close and don't touch my bag and you don't think anything is going to happen, though, until one of the ladies gets up and starts yelling at the other lady. >> that's when perell takes out his camera and begins to record. >> when they get up, they start yelling. the arguments, it's -- the asian lady didn't speak english very