If you give a Wassie a knife - there can only be one outcome.
Although Wassies enjoy playing with sharp objects, their terrible dexterity and complete lack of common sense means that any knives a Wassie has access to will eventually end up lodged in a Wassie. Although a grotesque sight, Wassies have thick skin and a pea-sized brain which means that even a knife stuck directly through a Wassie's skull does not actually negatively impact a Wassie.
Although not a widespread practice, certain sadistic humans and Outcasts are known to have used Wassies as knife blocks. An embedded knife also functions as a nifty handle with which to lift a Wassie as it actually takes significant force to pull a knife out of a Wassie.
