traits is his gut instinct. Tony explained to Ziva that "the Boss moves in mysterious ways" when she challenged Gibbs' judgment in "Honor Code" (later in the episode Gibbs is proven right). He has no patience with high-tech hardware, as seen in the Season 4 episode "Witch Hunt" when he stomps a Roomba to pieces in order to prevent it from vacuuming up evidence at a crime scene. He is also known for destroying many other electronic devices (especially mobile phones), and his adherence to a flip phone long after the rise of the smartphone. It is also heavily implied that he obstructed the main office's technological upgrades, such as the switch to digital monitors and instant video chat capabilities beyond the communications center, which deeply upset MIT graduate McGee. On rare occasions, if the usual judicial process is incapable of bringing a suspect to justice, he will turn a blind eye and allow "street justice" to run its course. One example occurs in the Season 3 episode "Iced", when a street gang member suspected of killing three of his subordinates must be released for lack of evidence. Gibbs drops him off on a street corner where he runs into several angry gang members, who have learned of the circumstances through a visit to the NCIS morgue; the team later sees a TV news report that the suspect has been shot dead. His hobby is woodworking. Gibbs is shown to have a wooden-hulled sailboat under construction in his basement, which he builds entirely by hand without power tools. In the episode "Tribes", he tells FBI Agent Langer: "Finished it twice. This is number three." He later tells NCIS Director Jenny Shepard that he is working on his fourth boat, and that he named one of the previous boats after his (then current) wife when he finished it, then burned it after their divorce. Team members and acquaintances often question (with no explanation) as to how the completed boats are removed from the basement. Gibbs has also been shown making wooden toys with his father around Christmas time, repairing doors and furniture, fixing the roof on Mike Franks' beach house, and offering to build Franks a teak hot tub. In "Pyramid", it is revealed that Gibbs built Mike Franks' coffin. Gibbs has a habit of slapping the members of his team in the back of the head when displeased with their