Under the wiper blades: "Hi Friend, I just wanted to let you know that some knucklehead vandalized your car by slapping an Obama sticker on it. The last thing you want is to be driving around all day, looking like an idiot. Take care, A Good Samaritan"
Examine the potential quality of life of your maybe child before having one. If you can't afford to raise a child, don't have one. There are too many children not being adopted who are stuck in the foster care system.