It was a battle of canine good versus evil at 7th and Montana this morning as everyone's favorite golden retriever, Lucky, canvassed the neighborhood for a good cause: the Guide Dogs of America. What a mensch! No wonder Lucky already has 18,223 friends following his exploits on Facebook. On the other end of the spectrum, "Hannibal" -- the evil poodle -- made the scene again yesterday wearing his "protective" mask. I tried to pet him, but he just looked at me like he wanted to eat my liver with some fava beans and a nice Chianti ...!