A car overtook me on a dangerous bend yesterday and then whizzed off down the road at top speed. As it overtook me I could see a 'Baby on Board' sticker on the back window
.
Presume it's only their 'baby on board' whose safety we need to show regard for, everyone else's is fair game. 
AIBU to think that if you insist on displaying one of these stickers you should bloody show a bit of courtesy and consideration to other road users as well?