fatbus: you are right F5 was probably not on of them since the ratios he mentioned are pretty out of whack. e.g. very few failed the medical and of those who did, the main issues were ear and spine problems. The psycho took most casualties though.
back to topic: for someone to "fail" spoken airman's english is disturbing since the spoken airman vocabulary IMHO is far less than what's required by a school graduate (english). Reading back clearance... push and hot, cleared for whatever will come.
