“As trainees, you are supposed to interrupt me if you don’t understand something. You are supposed to ask questions. But you are not to go ahead of where we are in the class. All of the sections will be covered in due time.”
You will always learn from mistakes. When you see them clearly as a test, examine the results, and study them closely for the reason why they went wrong.
You see one of the best people I know -- my Uncle Carl -- had a very bad accident this week. While working on the wood lot with his son, his hand got caught in a log splitter. In the end the damage was so severe that his left hand had to be amputated.
Although no longer a young man, my uncle is very active and enjoys working with his hands. He is right handed but clearly the use of two hands was an important part of his former life and just as clearly that will have to change.