We've all heard the story about the woman in Pennsylvania who was allegedly attacked by a robber who then became irate at her bumper sticker and scratched a "B" in her face. Put me down as a skeptic, along with Ann Althouse and Michelle Malkin.
Aside from the reasons they gave, why wouldn't the attacker make an "O"? The Obama "O" is as ubiquitous as a Christian crucifix* these days. Why would someone choose the other letter, especially when it is harder to do?
*yes, I chose the imagery on purpose.