The vibrating noise in our bathroom just sounded wrong. My mind, following a well-worn path, immediately went to calamity: It must be water pressure building in a pipe that could soon burst. I called my working-at-home husband. To avert emergency, he left his home office, walked across the hall, and opened the cabinet doors under the sink. Noting the buzzing was louder, he cleverly turned off the water valve. *Important background note: Between the two of us we can muster abo