Things that annoy me #5,694

Why do people feel the need to tell me how many people are in their family by putting those stupid stickers on their minivans?  You know the ones...where it shows the mom and the dad and the little boy billy and the little girl sally and even the little pup spot.  What is that all about?  And they are always in the lower left hand of the back window.  Are those stickers supposed to make me go slower or not beep at you when you stop completely before taking a right turn onto a side street?  Because they won't!!!