In case you wondered, the "dog on the roof" story is not doing Mitten Romney any harm. According to Public Policy Polling:
Seven percent of the American public say the dog-on-car-roof story makes them more likely to vote for Mr. Romney, and a stunning 14 percent say this is a “humane” way to transport a dog.
Yes, that's what they said.
When asked who would be better for dogs, however, President Obama beat Romney 37 percent to 21 percent. The rest aren’t sure.