Share the Sidewalk

Am I the only one that believes that sidewalks are multi-directional? If I'm running one direction and you the other, is it too much to ask that you yield some space as we pass? Maybe give me just a little bit more since I'm moving at 3 or 4 times your lollygag? And if your walking with your girlfriend, buddy or partner, can you maybe shift into single file, so I'm not forced off the sidewalk while you chat into oblivion? Am I asking too much?