It’s been interesting to watch the characters evolve on NCIS over the years, something that can only happen with time (and the luxury of surviving on the air long enough to get the time!). Whether you watch it or not, you might find value (and humor) in the “rules” that Gibbs lives by. Rule #9 seems obvious. Rule #5, don’t waste good, is simple and complex, a reminder of obligations.
Seems awfully hard to build a set of rules and remember them, much less live by them, yet we all do. They just don’t written down or given numbers
Beyond that, the Gibbs/DiNozzo and Franks/Gibbs relationships are great examples of mentoring.