I don't know (or maybe I do, who knows) that there use to be a
secret ritual to welcome guys posted into a Unit from Training.
It is only a rumour but it involved a pool table, a chair, some toilet
paper, a lighter and a drink of some kind to which the rest of the
horde would chant a prose about a zulu warrior. Ssssssh don't
tell anyone though.
I used to be in a secret organisation that was so secretive that even I didn't know I was in it. We had to meet a an ultra-secret location that was so highly classified that it didn't appear on any maps and we had to drive there blindfolded. Does that count?