After I posted this, I remembered the very first paragraph of the book:
Prison camp life would have not been so bad if:
(a) It weren't such an indefinite sentence. At times you couldn't say you wouldn't still be there (or worse) in ten years.
(b) The Germans didn't keep dropping hints that if they lost, Hitler was going to shoot you anyway, just to even the score.
(c) You could get enough food to fill your belly again. Just once.
- Paul Brickhill, Foreword to The Great Escape
Ron Wanttaja