Intrigued by recent letters to The Argus about these horrid "Baby on board" signs, I did my own little survey on a long and boring motorway drive.

Call me sad, but every time I overtook a car with one of these signs I looked inside to see if there was a baby. Guess what?

Only on a third of occasions was there actually a baby in the car. Quite often there wasn't even a child seat.

Haven't these people heard of the boy who cried wolf?

What I would be in favour of is a big orange sign with the legend "Idiot with mobile phone on board".

I have started sounding my horn as I pass one of these cretins and would love to fit one of those jamming devices to the front of my motorbike.

-Dick Schwanz, Brighton