Baby On Board

Yuppie car rear-window signs proclaiming presence of ankle-biter in car. The signs originated in 1985 as a way of informing rescue workers that there was a baby in the vehicle (toddlers were apparently often thrown some distance from car-wrecks and may go unnoticed). They were also intended to generally alert other motorists of the presence of a young 'un in the car (presumably in case they hadn't already heard the crying and screaming).

Became in the 80s what the rear-window rainbow sticker was in the late 70s (or the Christian 'fish' sticker). Like we cared why you were such a shitty driver!