There was a chap like that on 99 Entry, RAFC. We met up on the train from Kings Cross to Grantham, where we were herded onto buses which drove us straight to the South Brick Lines. After dumping kit and being marched off for various arrival adresses, back we went to the SBLs.
The next day he simply wasn't there. We later found out that he hadn't even unpacked; he'd called a taxi from the Junior Mess the night before and simply bogged off. The son of a colonel too......