Only this very day as is I've sent a Howler (just a Howler, not actually written in Snarglepod venom) to National Grid after one of theirtwatsdrivers cut me up at a pinch point. We'll see what response I get. Ironically it had one of those buck passing "cyclists stay back" stickers on the back. If only they paid some attention to their own bloody driving.
Update: Apology received from National Grid. Apparently the driver has been spoken to. Seems reasonable.