Zero tolerance: 1. Refusal to tolerate anything that the rules don’t allow. 2. Refusal to tolerate anything that I don’t like, because I am in charge; random, whim-based decree denouncing whatever the Chief Executive can’t stand this month; juvenile idea that if I say it mustn’t happen, then it certainly won’t happen, as in “We have a zero tolerance to sexism in this company,” followed swiftly by revelations that said Chief Executive has been shagging the receptionist behind his wife’s back, and refusing to pay all female executives the equivalent to their male counterparts. (see Failure is not an option; Nero syndrome)