Perrette seemed to confirm rumors about her 2018 departure from NCIS after 15 seasons in a series of tweets this morning. Responding to fans urging her to reprise her Abby Sciuto role on NCIS, Perrette tweeted: "NO I AM NOT COMING BACK! EVER! (Please stop asking?) I am terrified of Harmon and him attacking me. I have nightmares about it. I have a new show that is SAFE AND HAPPY! You’ll love it!" Perrette recently returned to CBS to star in the sitcom Broke next season. Shortly before her final episode aired in May 2018, Perrette alluded to "multiple physical assaults" leading to her exit. The Wrap reported that she was referring to a 2016 incident in which a Harmon's dog bit a crew member, requiring 15 stitches. Perrette objected to the dog's return to set, The Wrap reported, which led to tension with Harmon and them filming their scenes apart. In a follow-up tweet this morning, Perrette posted images of a crew member's injury: "You think I didn’t expect blow back? You got me wrong," she tweeted. "THIS happened To my crew member and I fought like hell to keep it from happening again! To protect my crew! And then I was physically assaulted for saying NO!?and I lost my job." Harmon has yet to respond to Perrette's accusation, while CBS hasn't responded to E! News' request for comment.