WHY do public service buses bother to indicate that they are about to pull out and rejoin the traffic if they set off as soon as they flick on the indicator light, regardless as to whether you are in the process of overtaking them or not?

I consider myself a good, safe and thoughtful driver, and always slow down and allow buses the chance to pull out before me if I see that they are indicating to do so.

If, however, on reaching the rear of a bus that has stopped to pick up passengers and has its left indicator light on and the road ahead is clear I have a perfect right to overtake, rather than sit lamely waiting for it to set off (Sod's Law would be that the driver was reading the paper or the bus had broken down).

And when in turn I am overtaken by the same bus, after pulling in myself later, I don't need a wagging finger.

If I wasn't six foot two and as ugly as I am, the driver might have thought the need to say a few words on the matter. As it happened he just drove on.

Simon Warren, Calvert Close, Haxby, York.