Potentially, you could follow them to their destination if dealing with heavy traffic in a downtown location. Then when they park and start strutting to their destination, high speed 'clip' them on 'accident.'
Or just outright land in them. Explain to them that the perfectly good sidewalk didn't work out like you thought.
(I'm not suggesting anybody do this, I'm playing along in the anonymous 'internet hatred' game that has helped to probably validate some of these people's opinions.)
Bottom line: Fan groups like this show that there is some group of people that think its a valid theory.