Come on man. Yes she has a very calm looking pretty face on a bus that is being overturned by your loud neighborhood ghetto people with a pre-paid camera phone and some war vet who has a nice mix of DNA from John Rambo and Travis Bickle. But her pretty face aside she clearly has something wrong with her and it isn't from getting busted after a night of binge drinking.
Lets break down her clothes. Moss green Chuck Taylor Converse, with gray socks that are lifted over purple nylons with a dark blue skirt, and a light blue shirt. Accessories include a Shamrock green purse, some oversize headphones that are probably plugged into a Walkman cassette player. She is a very simple person and looks to be pretty independent. She seemed unfazed by the fight or the sight of blood so that tells me this isn't the first time somebody set it off in her presence. Maybe she has seen her fair share of institution fights with crazy loud mouth people. Or maybe the medication she was on at the time is a downer and not an upper.
If I was to guess she wasn't on her way to work because any job that would employ a woman of her lack of style or color coordination would most likely be a job that requires her to wear a uniform. She isn't on her way to school because she wasn't carrying any books. I would say she was on her way to visit a doctor or shrink of some sort. She may live in a halfway house or one of those special living apartments where the handicap, slow and mentally challenged live independently on a strict budget.
You may call me a dick for calling her out like this but I have seen a lot of the unpleasant world and am pretty good at spotting characters.