When I was young, I started to cut my soldering teeth helping my grandfather maintain his model train layout (age issues meant he was finding it hard to do fine

When I was young, I started to cut my soldering teeth helping my grandfather maintain his model train layout (age issues meant he was finding it hard to do fine work upside down under a table)[1]. I was so excited to be helping, learning about electronics, and playing with tools, but so disappointed when the "done" state was a train going around. Moral of the story: When you solder upside down, wear eye protection.