Many years ago, when I was a supervisor in a large prosecuting attorney's office, I had to approve or disapprove a hundred requests a day. I bought a small, square rubber stamp on which a fist with a thumb sticking out was printed. I would use it with a red ink pad and rotate it so that the thumb faced up for approval or the thumb faced down for disapproval. I'd put my initials over the fist part and send the document on its way. Funny how you remember things like that. Funnier still that, in the super-serious world of a prosecutor's office, I got away with doing it at all.