I recently heard this on the local Christian radio station.
They have a "Call-in Confessional" show. One man called in and said that he was driving his wife's car to work. All of the sudden, a car behind him started laying on the horn. He looked back, and the guy just kept honking. The guy kept getting angrier and angrier. He knew it wasn't a Christian thing to do, but as the guy passed him, he gave the other driver the finger.
Still upset, the guy got home and parked his car. As he turned around to make sure he locked it, he saw his wife had a bumper sticker that said, "Honk if you love Jesus!"
That's how I feel right now. Can't really explain it any better than that.