“No! No! No! NO!” I screamed. It didn’t help. Not one bit. My brilliant solution for our plugged problem—flushing again—accomplished exactly the opposite of what I’d intended. I knew I had made a mistake the second I pushed the lever down. And I stood helplessly as water overflowed.

How many times have our kids tried to pour milk and misjudged the process, with white liquid flowing everywhere. Or maybe we failed to remember that a two-liter bottle of soda just rolled around in the trunk … with explosively startling results.

No, spills are almost never a good thing. But there might be…