You should let people pass on the sidewalk.
Tony is walking very slowly in the center of the sidewalk with lots of people around.
Tony wants to maintain his walking pace.
Tony moves from the centerline to the side of the sidewalk letting people pass him.
Tony continues down the centerline of the sidewalk pretending he doesn't see people behind him.
People think Tony is considerate and don't get angry with him.
People walking behind him who are faster get very upset and may push Tony and hurt him.