Some people did take the you-know-what, though.
I was once tasked to fly a Puma back to UK for an exercise. The sqn received a request from an army officer for "a few pieces of his kit" to be flown back to UK. This was agreed, without my knowledge as captain. First thing I knew about it was a 4 ton truck on dispersal, jam-packed with his household goods! Idiot obviously thought we were going to move almost his whole household for him. We only had room for a few boxes and a comfy swivel chair. The crewman sat in the chair all the way over the Channel and wanted to keep it as an aircraft mod. The rest of the furniture was sent back to Bielefeld, from whence it came.