What was your worst road rage encounter?

I was driving back home over the Golden Gate Bridge, and this guy was doing like 70 (its a 45) granted I was doing like 55-60 he got on my and I brake checked him and he went around me and straight slammed on his brakes, to a complete stop and started screaming and cursing at me out the windows. I swerved and was maybe 2 inches from hitting the car in the next lane. He then proceeded to follow me and hold his horn down until we got to the toll booth, LUCKILY I live in San Francisco and have a FasTrak which allows me to go through toll without paying cash (it charges credit card) so I lost him.