NCIS
Premieres Tuesday, Sept. 25 at 8/7c
Gibbs' Rules: The Complete List From NCIS
Gibbs' Rule #42: Never accept an apology from somebody who just sucker-punched you.
First mentioned in "Psych Out" (Episode 16, Season 9).
By viewing our video content you are accepting the terms of our Video Services Policy. © 2018 CBS Interactive. All rights reserved.