LOL!
You just reminded me. We used to like to try to build homemade rockets.
After enough launchpad disasters, we figured out it was more fun and much easier to just build small bombs. (Good gawd, could you imagine that in this day and age?)
The nice thing about pure bombs was that they exploded where they were placed. My rockets, if they didn’t blow up on the pad, had a tendency to get as far as a neighbor’s house and blow up there.