A three-year-old kid does not understand politics. She just knows that her daddy handed her this sign, and that sign is hers. So of course, when some a**hole rips the sign from her hands and tears it in half, she’s going to cry.
Some people are such… jerks.
In addition to that, and I have no photos of this, but several of my neighbors’ Bush-Cheney signs in their front yards have been the subject of vandalism. With people hucking rocks and the like at the signs to bend them completely out of shape.