Lesson: Always pack your own parachute.
Lesson #2: Never jump out of perfectly good airplanes.
I was involved with skydiving for a short time many moons ago and we always packed our own main chutes. But I don’t remember packing the reserve chute. The skydiving club was a on the Army base and I think maybe we had official Army parachute riggers for that.
“Lesson: Always pack your own parachute.”
She did.
“Lesson: Always pack your own parachute.”
Perhaps. But I can’t help but admire US Navy jet pilot Charles Plumb’s attitude about it, in another great war story from this article, “Who Packs Your Parachute?”
https://www.forbes.com/sites/kareanderson/2015/11/18/who-packs-your-parachute/
Then its your fault if it doesn’t work. :)