The two men’s schedules last Saturday were as carefully routine as the procedure itself. After his colonoscopy, performed in the medical clinic at Camp David, Bush played ball with his dogs, Spot and Barney, tucked into a hearty breakfast of waffles and took a 4.5-mile walk in the woods before retiring to the gym for what Press Secretary Ari Fleischer described as a “light workout.” Acting President Cheney arrived at his office in the White House shortly before 7 a.m. (he typically works on Saturday, says an aide), convened a meeting with his staff to discuss a broad range of homeland-security issues and headed home around noon. “It was business as usual,” says a Cheney spokeswoman.