PT = Physical Training, calisthetics, exercise
So, I'm sitting at my desk, minding my own business, not bothering anyone when an offcier walks up to my desk.
OFFICER: We should consolidate all these PT sign-out rosters into one notebook. You can find some under Major Peterson's desk.
ME (chuckling): I don't think Major Peterson does PT very often.
(pause)
OFFICER: I meant the notebooks.
ME: Ri-i-ight.