Before
When I was 12, I discovered that when you sit in an doggystyle position and spread your buttcheeks (don't ask me why I did this, because I generally don't know), air can be sucked into your butt. This way you can make enormous farts on command.
Later I taught my best friend how to do it. After school we would "train" to get longer and louder farts. After some time, we both managed to get farts longer than 10 seconds. It was a crazy time.
The fun part is that we are still best friends and we both can still do it. From time-to-time we talk and laugh about that time.
After
When I was 12, I realized that if you stay in a fitness position and shake your fingers around (don’t ask why I do it because I don’t always know), it can take your breath away. That way you can make great observations in the basement.
Later I taught my good friend how to do it. We get “training” to get more time after school. After a while, we managed to escape in the next 10 minutes, it was a crazy time.
Thankfully, we are also good friends we can do both. We talk and laugh from time to time.