Apparently, the real purpose of that 'Baby On Board' sign may be to protect you. Forget about all those texting teenagers: A new study suggests that new moms are also a highway menace. According to a survey conducted by American Baby and Safe Kids Worldwide, 10 percent of new mothers have had an accident with a baby on board — a rate about three times the average for all drivers.

The reasons behind the phenomenon are probably obvious, and add to that only getting, on average, just over five hours of sleep a night.  I'd cut a wide path if I were you.