eh, i'm siding with TMUL on this one. what's worse, when you bump in to these people they look at you like it was your job to avoid them - how dare you walk in to me while i'm not paying attention?!? talk about unjustified indignation.
but this isn't the greatest social ill of our times. drivers who talk on their phones, or worse yet text, is a bigger problem. that, and ethnic cleansing.