SUDDENLY REALIZED THAT when I wash food by holding it under the horrible yellow water that comes out of my tap I am really just adding an extra dose of carcinogens. Funny how we do things without thinking these days. *** Case in point: A reader sent me a news report about an unobservant man who collected the wrong child from school. Joseph Fuller, 65, intended to pick up his grandson, but took an unrelated boy home instead. The child, equally out of it, confirmed to school staff that the old man was his grandfather before going off with him.