On my first trip to Bangalore, way back in erm.. June, I was struck by the constant tooting of car horns. What is the problem with these people I thought! In the UK the horn is associated with road rage and angry drivers inches away from stopping the car and hammering in your window with a tire iron.

But a colleague told me that the convention in India, indeed it might even be (or have been) the law, is to indicate your presence via the horn to other drivers, especially when overtaking. Suddenly the whole racket takes on a different aspect. Nobody is spoiling for a fight - it's a cacophony of good intentions!