No Room for Meandering on My Sidewalk

I can't walk behind slow people.

I have long legs, tend to walk with an assertive stride, and rarely do I meander. When I am stuck behind people who don't share my walking characteristics I get impatient and antsy, and sometimes feel claustrophobic. These feelings tend to morph into rudeness, as I break a conversation between two strolling companions just so I can get by.

Surely they heard my quickly approaching footsteps followed by shuffling of my feet, as I try to maneuver my way around them?

Why can't they just get out of my way? I have important things to do!