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1. Rule 12
Romance between coworkers never works out.

(Originated from S.A. Gibbs' unwritten Rules, per NCIS)
TONY: I love you, Kate, but we can't break Rule 12!
KATE: Screw Gibbs and his rules! We belong together.
2. Rule 12
"Never date a co-worker." From the all-important (and sometimes hypocritical) rules of Leroy Jethro Gibbs of NCIS.
Ziva: "Tony, we cannot break Rule 12."
Tony: "Why not? Gibbs and Jenny totally did."
3. Rule 12
Downloading unnecessary porn when you are horny, then deleting after finished.
After I finished looking at porn, I rule 12'ed the torrents I was downloading while horny and fapping, by going back after I was done and deleted the downloads in progress.
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