Lt. Mousse was the Chief of Security/Chief Tactical Officer of the U.S.S. Benjamin Sisko. On Stardate 60109, Lt. Mousse, as well as 16 other members of the Sisko's security detail were killed fending off an alleged Romulan boarding party.
Lt. Mousse, while not the most trustworthy of officers due to his vision issues, was a competent officer when he needed to be. Because of that, he quickly excelled through the ranks of Ensign and Lieutenant JG in Starfleet security.
Serving on only two starships prior to the Sisko, he was rarely disciplined, though he did have numerous incidents of overreacting, as well as issues where he got argumentative when it turned out his next assignment was not with Commander Shampoo.
His previous assignment was on the U.S.S. Nekohanten (NCC 31029).
Normally an officer by the rank of Lieutenant would not qualify for the position of …