I know, that’s an Army thing, but it fits in the Air Force, too (which, btw, was created on 09/18/47)

An Air Force C-141 was preparing for an early (3:00 AM) departure from Thule, Greenland, and they were waiting for the truck to arrive to pump out the aircraft’s sewage holding tank. The Aircraft Commander was in a hurry, but the truck was late in arriving, and the Airman performing the job was extremely slow in getting the tank pumped out.

When the Aircraft Commander berated the Airman for his lack of speed and promised punishment. The Airman responded, “Sir, I have no stripes, it is 20 below zero at oh-three hundred, I am stationed in Thule, Greenland, and I am pumping shit out of airplanes. Just what are you planning to do to punish me?”