I used to be on a team that was responsible for the care and feeding of a great many Linux boxes which together constituted the "web tier" for a giant social network.

At some point, I realized that if I wrote a wiki page and documented the things that we were willing to support, I could wait about six months and then it would be like it had always been there. Enough people went through the revolving doors of that place such that six months' worth of employee turnover was sufficient to make it look like a whole other company. All I had to do was write it, wait a bit, then start citing it when needed.

One near-quote from that page did escape into the outside world. It has to do with the "non-compliant host" actions: "Note: any of these many happen without prior notification to experiment owners in the interest of keeping the site healthy. Drain first, investigate second."

So the author created a list of actions; methods to apply for any given events.