Back in those days intimidation was the greatest tool the drill instructor had. Without that tool, he would not have had control.
And it's always possible that you will not get a nice review. So - and that's enraging of course, to get a bad review, you can't talk back, and it's sort of shaming in a way.
When the show is over we still have to pay our rent, we have to buy food. We have to do all the same things that you do.

