Science class. Seventh grade. The teacher handed out a piece of paper and said it was a test. He told us to read through the instructions. It's a test that I still remember to this day. Why? Because I failed it. Recently, to my surprise, I stumbled upon a picture of that test on the Internet:
It was my science teacher's way of showing us how to follow directions and pay attention to detail. It worked. Failure is a great teacher.