What is it with the fact that your continuing to run at a steady pace is more important than anything else going on on the sidewalk? I've been escorting a group of grade-schoolers on a class outing and had joggers plow right through the middle of the group. This morning, I made the mistake of pausing for a second at a street corner, unsure of which way to go, and I narrowly avoided being knocked by some dude in shiny purple tights.
Well, joggers, let me clue you in on something: interval training. You see, years ago, it was discovered that, if you stop in your training from time to time for a few seconds, your heart rate actually gets higher than if you just keep going.
So, joggers, if you pause to let that old lady on her walker pass, you'll actually get in better shape. As well, as not being a total douche bag!