One of many interesting methods to keep us on the ball during clearance diver course was to issue 50 push-ups each time a member of the course breeched diver discipline.
We operated as “one in, all in”, so regardless of who dropped the ball; we would do all the push-ups together. Day to day our push-up count would be in the 100’s and if any were owing any at midnight, that amount doubled and was then the starting amount for the following day.
Doing 100’s of push-ups day after day can be draining and as a result your push-up form can start to laps. So if an instructor noticed a student doing shoulder shrugs, he would issue him with the apple float necklace, which he was to wear at ALL times over the next 24 hours.
The apple float was only to be removed when we were in the water diving or we were doing push-ups. It was to be placed on the ground under your chest so each push-up the instructor could see your chest hit the apple float. After 24 hours and if the instructor is happy your form has improved, you can then hand back the float.
Issuing push-ups was a pretty successful method of keeping us on the ball. I had a spell with the apple float necklace, it was a hard 24 hours and apart from having to hit it every push-up I did, it was pretty bloody embarrassing wearing it!