Perhaps. But depends on what "acts like an ass" means. Most cities don't have the ability to ban people from public transit, so they don't have to deal with where that line gets drawn. Is smelling bad "acting like an ass"? perhaps I'm smelling bad through no fault of my own (encountered something smelly at work). Is vomiting "acting like an ass"? Perhaps I'm doing chemotherapy. If lines are getting drawn, who is drawing them and is there an appeals process?