I showed Sam2 the relevant koan.
I then proceeded to type in the rules for the firewall, line by line, until Sandstrom came over and commented that it would be an awful lot easier if we were putting them in a file, so we could run them later at will. He recommended vi, and told me that actually, the way I was doing it was the way he'd do it, testing first before putting into a file...
Scary and evil things happened, at least from the viewpoint of the Sams; man and -h saw me at least limping through putting stuff into vi, which later proved to be in a way that was... well... not really good, since it wouldn't save to the file I thought it was saving to, was beyond the expertise of the lab guy, and finally required Sandstrom's intervention.
And we never did finish the firewall.