Interests
Rule #1: Never screw over your partner.
Rule #2: Always wear gloves at a crime scene.
Rule #3: Never be unreachable.
Rule #4: The best way to keep a secret? Keep it to yourself. Second best? Tell one other person - if you must.There is no third best.
Rule #5: You don't waste good. (…"You're Good" Gibbs says to DiNozzo) '
Rule #6: Never apologize  Its a sign of weakness.
Rule #7: Always be specific when you lie.
Rule #8: Never take anything for granted.
Rule #9: Never go anywhere without a knife.
Rule #10: Never get personally involved on a case. (Said by Tony, agreed on by Gibbs)
Rule #11: When the job is done, walk away.
Rule #12: Never date a coworker.
Rule #13: Never, ever involve a lawyer.
Rule #15: Always work as a team.
Rule #16: If someone thinks they have the upper-hand,
…break it! (DiNozzo)
Rule #18: It's better to seek forgiveness than ask permission.
Rule #22: Never, ever bother Gibbs in interrogation.
Rule #23: Never mess with a Marine's coffee if you want to live.
Rule #27: Two ways to follow: First way, they never notice you,  second way, they only notice you.
Rule #35: Always watch the watchers.
Rule #38: Your case, your lead.
Rule #39: There is no such thing as coincidence.
"The 40's are for Emergency Use Only!"
(Mentioned by Abby)
Rule #40: If it seems someone is out to get you, they are. (Said by Abby, agreed on by Gibbs)
Rule #44: First things first. Hide the women and children.
Rule #45: Clean up your own mess. (Gibbs Said, "Left a mess I've got to clean up."  DiNozzo commented that's basically Rule #45)
Rule #51: Sometimes  You're Wrong!
And remember…
"A slap to the face
is an insult  to the
back of the head
is a wake-up call."