Career
As an educator, Boois was a teacher at the Ecumenical Community Secondary School in Berseba. Boois was involved in a controversy regarding the different factions of the traditional leadership of the ǀHaiǀKhaua (Berseba Orlam) subtribe of the Nama people. He supported a group contesting the legitimacy of the reunification of the Goliath and Isaak rival clans and tried to extend the 50-year-long split of the Berseba Orlam.
Eventually Boois supported the unity of the tribe by reconciling with fellow former Karas governor Stephanus Goliath early in 2011.
He also owns 8% of the shares in the company. He also owns over 15,000 shares in Southern Namibia Hake Fishing Industries alongside fellow SWAPO politician Willem Konjore.
He also owns a restaurant and hotel in ǁKaras Region.