I lasted 52 seconds before getting that nervous sickening feeling.
At six minutes I noticed I was holding my handkerchief over my mouth
All this while sat in a chair at my PC!
I could never ever do that job, no matter how much I was offered, as it would probably quite literally kill me through fear related heart failure. On the other hand, I would not have any problem with being in a glider or (more recently) a Tiger Moth with no chute at that height.