I often wonder what the sign means BOB what are we suppose to do come to a screaming halt and let them pass us on the road ??? I have seen cars with the dangling sign on window and the kids not even strapped into,car seats
Edit: I stand corrected, but what I said above is a good idea..
. From Snopes:
Though the backstory about an infant who died in a car crash because he wasn't found in time is one that would chill any parent's blood, how these signs came to be is far removed from the lore. There were no dead babies, no horrific crashes.
In 1984, Michael Lerner founded Safety 1st for the purpose of manufacturing "Baby on Board" signs. The inspiration for the signs came not from a deadly accident that took the life of a youngster but from a friend who saw similar stickers in Europe.
Mr. Lerner himself was occasionally worked into the rumor — some versions asserted this childless bachelor had first developed the ''Baby on Board!'' idea after losing a son or a daughter in an accident.
From its humble beginnings, Safety 1st went on to become a juvenile products marketer with a lineup that included teething rings, potty chairs, and electronic baby monitors — 650 items at all. The company went public in 1993, then was bought by Dorel Industries Inc., its Canadian rival, for $195 million in 2000.
Because few situations or admonitions are deemed so serious that they rule out all opportunity for humor, straightforward "there's a child in the car, so drive carefully" requests quickly spawned a number of parodies, including "Baby Driving," "Warning: Baby is Closer Than it Appears," and the ever-popular "Baby Carries No Cash." It wasn't long before some communities were attempting to bar these parody signs, stating their presence took away from the message conveyed in the original and worked to desensitize drivers to what was meant as a safety measure.
Michael Lerner was similarly displeased by the parodies because he believed they mocked a serious effort to achieve safer roads. ''Our concept was to really improve driver awareness of child safety,'' he said. ''Car accidents are the number one cause of child deaths in the United States.''
In 1986 a study conducted by a Bronx assemblyman's office found humorous plays on the "Baby on Board" sign outnumbered the real thing by five to one.