The reason why 'NCIS' stars Pauley Perrette and Mark Harmon stopped appearing on screen together

For fans of the long-running detective drama "NCIS" there has been a noticeable absence of stars Pauley Perrette and Mark Harmon acting in scenes together. The two didn't even share the screen for fan favorite Perrette's last episode. As it turns out, the separation stems to a 2016 incident where Harmon's dog bit a crew member, requiring 15 stitches. According to the Wrap, multiple people familiar with the incident say Perrette objected to the show for allowing Harmon's dog to return to set after the incident.