Baby On Board.

I've never understood the reason for this, although I feel compelled to buy one.

Are they:

A) To alert emergency services if you crash?

If this is the case, my husband who works for the ambulance service says you always look for a child if you find a car seat. I drive around with this and my empty car seat all the time on rare trips of freedom. (to the supermarket or doctors)

B) To alert boy racers / road ragers to not cut you up or ram you off the road?

If this is the case and I'm sure the boy racers concerned wouldn't really be reading what I've posted in my windows. Or should road ragers forgive poor driving as my brain has been reduced to mush due to screaming...