Road rage due to motorcycle lane splitting. Idiot in car instigating trouble, just let the motorcycle proceed and not get mad if they split lanes.
I see this everyday and don't get mad if motorcycle goes to the front of stopped traffic at red light.
http://www.wsvn.com/story/31641845/motorcyclist-nearly-driven-off-road-in-road-rage-altercation
http://www.wsvn.com/story/31641845/motorcyclist-nearly-driven-off-road-in-road-rage-altercation