Hi,
To the silver stream driver i encountered:
I have given you right signal and ample timing to cut into your lane. You used the ample time i gave to speed up and follow- on horn at me from the back. So for the safety of my wife and kid, i stop my change lane plan and let you pass. And after i change lane and at your back, u perform a hard brake. For the same safety concern, I move back to the original lane.
my sincere advice is please change your driving attitude and steer toward good and safe driving manner.