also engaged to a fifth woman, Ellen Wallace, who was thought to have died in the September 11 attacks, but was murdered the night before; Gibbs broke off the engagement about two months before her death. Since her introduction in the series in season 15 episode 4, forensic psychologist Jack Sloane (Maria Bello) has shared a close bond with Gibbs, to the point that the other team members question if Gibbs and Sloane have "a thing". The two share a kiss in Sloane's final episode (season 18 episode 8). Personality A decorated Marine, Gibbs is portrayed as a consummate organizer, disciplined and demanding. These traits often put him in a stand-off with other authorities when they exert pressure on his team. He is a no-nonsense agent who displays a continuous urgency about the investigation he pursues, specifically when being given technical information about complex subject matter. The typical response to such information is "Give it to me in English", thus forcing the expert to get to the point, as well as making it easy for the audience to understand. It is a well-known fact with his agents that he dislikes any ambiguous references and terms such as "assuming" and "maybe" when discussing a case or dealing with evidence. He also displays elements of sarcasm, particularly in relation to someone in his company stating something obvious. The typical sarcastic answer "Ya think?" is his preferred retort. He is known for communicating displeasure with a single look or the "silent treatment". One of his interrogating techniques is to sit and glare at the suspect for twenty minutes or until the suspect buckles under pressure. Gibbs' "steely gaze can cool a room by five degrees". In direct contrast, when enraged, Gibbs will often slam his hands down on the interrogation room table very violently and rattle a tight-lipped suspect with the sudden outburst. He is acknowledged as one of the "best interrogators in law enforcement" and has occasionally been requested by external agencies to conduct interrogations. Gibbs has little patience for the "politics" and bureaucracy his job entails, usually leaving that aspect to his director, and prefers to be out in the field working with his agents. In "Trojan Horse", he briefly served as acting director while Jenny Shepard was in Paris attending an Interpol conference and displayed an intense dislike of the paperwork that comes with it. One of Gibbs' most noted