Rule #15 - Always work as a team.
When Abby told McGee that their best chance of stopping the Christmas cyber attack on Washington D.C. was to interrogate three hackers that NCIS had put behind bars, he asked her to keep that strategy to herself as he had other plans. Keeping information to yourself is not working as a team, McGee! Abby didn't listen to him anyway though, and forwarded the info on to the rest of the crew.
Watch NCIS Tuesdays at 8/7c.