I did a parachute jump and while the instructor was telling us how it was a 1 in a million chance of a chute fail, the guy jumping before our group's chute failed oooh errr On a serious note though, instructors throw you out the plane even if you don't want to jump, saw it happen to one of my mates on the same jump. When you're that high up no-one wants to do it and once you're on the ground again everyone loves it so they try and give you a little "help" if you look too frightened to take the big step and it happens all the time. Poor guy just thought the old bird was nervous and didn't want her to miss out although if something does go wrong like this and the instructor "helped" then lawsuits beckon.