On a serious note, this is a good idea, perhaps go back to the clandestine world of secret messages, meetings and how to pick up / drop papers in a way that is seemless so someone else picks them up, e.g
drop paper with info on table
place newspaper on top
pick both up and walk away
The sort of thing you hear about with secret agents, also learn hand signals,
stock up on floppy disks and usb floppy drives, so info can be moved around.
I think people know what I am getting at here, even tne use of uuencode/decode etc. It is enough to get info out to people through means most would not notice.