there was an incident here a few years ago that I'm sure I posted about before. A driver was waiting at a light and a cyclist came up and pounded on their window. The driver floored it, and rear ended the car in front of him. The police reported that they were looking for the cyclist, although it seems they never found him. I'm sure the driver did something absolutely life-threatening to the cyclist, but I think the incident could have had a very bad ending for the cyclist.