Don't trust the eye.
Imagine a Y-junction, and that you are at the top of one of the arms. I was in that relative space just a couple of day ago, en route to eat, and saw this Merc coming towards the junction from the stem of the Y. It slowed, I thought, and made as to turn down the arm on which I was not. I looked the other way to check traffic, and as I stepped into the road to cross, the bloody Merc was almost on my foot. A lesser person would have been put off his lunch. I don't know it the driver enjoyed his or not.
Those milliseconds aren't worth squat.
Rob C
