Our supply clerk at the factory was in a dither. A box had been left on the loading dock with this warning printed on it: "Danger! Do Not Touch!"
Management was called, and we were told to stay clear of the box until it could be analyzed. When the foreman arrived, he donned safety goggles and gloves, and then he carefully opened the box.
Inside were 25 signs that read: Danger! Do Not Touch!

Here are some life lessons I've learned from jigsaw puzzles:
One afternoon I was walking on a trail with my baby daughter, chatting to her about the scenery.