Imagine if you really wanted to kill yourself.
Like you had terminal cancer or something. Or you REALLY just wanted to die.
So you go to a skydiving seminar.
You learn the theories of how to do it and the simple lessons.
You get on that flight.
You're with a diving instructor but you're not tandem jumping.
Imagine his horror when he says it's time to pull the cord... and you don't.
All he can do is slowly drift to the earth just watching in horror as you plummet to the ground.