do sb an injury

do sb a bad turn do sb a disservice do sb a favor do sb a favour do sb a good turn do sb a kindness do sb a mischief do sb an injustice do sb brown do sb credit do sb dirt do sb down

fault-pattern fault-secure fault-tolerant fault-tolerant computer fault-tolerant computing fault-tolerant concept fault-tolerant design fault-tolerant distributed system fault-tolerant logic fault-tolerant network