You think whining about it on an internet forum is going to help you get a better grade at your exam? I don't think so. Call the cops if you can't study; it's illegal to do it on the street, so I'd say your problem will be solved pretty soon. You could also try kick 'em them of their bikes or w/e. I'm sorry if i made it sound like i was whining, wasnt intentional. And its not about the exam, the point is they're annoying. Maybe i should call the cops...but then they moved already. so oh well