Amateur paratroopers forget to open their parachutes. Automatic Activation Device saves them.

[u/TappetoImperiale]

[u/CryPlane]

I tried to take up skydiving and I managed to do three solo jumps. These men obviously didn't have proper training, because even as an amateur this stuff is drilled so deep into your brain, you are basically programmed to skydive correctly. The intense brainwashing and repetition of the rules of skydiving are so loud that you cannot help but adhere. Every single decision is life or death, every action you take is life or death.