Why cyclists should keep their cool in the face of dangerous driving

Anger is often the first response to a near miss on the road but there are better ways to hold drivers to accountNot long ago, while riding down Archway Road in north London, I confronted a truck driver who pulled out without warning. The road is a long steep hill where bikes and cars gather decent speed if traffic is minimal. I was riding at just over 20mph, but flowing with traffic in my lane and within the speed limit. When the truck pulled out only metres ahead, I only just had time to brake