With all the porta-potties in Starbuck's back yard these days, it seems only natural that toilet humor should reign supreme at 7th and Montana. Kathy wins today's prize for discovering a booming business in doggie waste disposal. It seems a company called Doody Calls has been making the rounds door-to-door in Santa Monica offering the latest in pet waste removal services. Their motto? "When Nature Calls, We Answer." I guess Andy Gump will just have to make doo.