I see this regularly. You'll see people walking along the edge of the road, in a bike lane, with a sidewalk next to them. And the bike lanes down here are much much worse than the sidewalks. And they do not care of they get in your way and they will not move.

It also annoys me when recreational riders ride on the sidewalk and have to take up the whole thing. Thats also really common where I am. I was walking the sidewalk one day with headphones in, far enough over so if someone was walking they could get by. This guy on a beach cruiser style rides up behind me and couldnt get by and starts screaming for me to get out of the way. I turned and told him to ride in the bike lane where he was supposed to. He told me he didnt have to, I told him I didnt have to move out of his way either.