Do "Baby on board" signs prevent accidents?

didnt the idea that they are suction cupped to the window some how negate the fact that they would be used for rescuers?

I mean that wa the first sign to me that they wer enot meant for this purpose. How many accidents have you seen where the windows were not smashed in?

i mean come on people…
Zaphod

oh saw the babe on board one last night, and yes she was.

I saw one yesterday. It was on the side window, which made it even more useless than usual.