Manners

I talked about Rules of the Road in a past entry but something really irked me yesterday as I was walking downtown. We complain a lot about drivers and cyclists who don't follow rules, but what about pedestrians? I'm not even talking about crossing the road, it's walking in general. If you want to use your cell phone while you're walking could you at least look at where you're going instead of looking down at the ground? If you hear or see something or someone behind you could you maybe stop instead of walking randomly toward me?