CAUTION!

I was in the parking lot at the grocery store today and in the window of this heavily beat up wagon there was one of those bright yellow & black CAUTION! BABY ON BOARD hangy things. I regarded it as I got out of my own car and walked in side for some reason unable to let the sign go in my cogs and nuts brain.
I wondered - why do people put stuff like that on their car? I mean does the drive of that last leg heap really think that because they have that CAUTION sign - that will stop an accident from occurring. Or do they believe that people will see that and think "Oh my. I must guard that car. It needs caution because it has a baby on board". I don't understand the logic behind sign such as these. I mean at least put up something funny and entertaining for your fellow drivers - Unless your a hemroid get off my ass. Or - If you're riding my ass you better be pullin' my hair. But seriously the best expression of yourself you can find is CAUTION! BABY ON BOARD.