I ride the elevator many times every day. When I hear approaching footsteps that seem to be rushing or accelerating, I presume they are hurrying to catch the elevator, so pump the open-door button until they get there. If they happened to be wearing soft-soled shoes, I'd never hear them coming. Think of the energy savings this ride-sharing is achieving. I've reduced my carbon signature so much that now I spend my weekends roaming the state forests with my chain saw, lopping branches and felling things willy-nilly.
Does that make me a bad person?