Definition of Sabotage
deliberate damaging or destroying of property or equipment by enemy agents or disgruntled workers. an action taken to hinder somebody's efforts.
Origin: Sabotage derives ultimately from a French word meaning "clog". The underlying idea was of clattering along in clogs. Through the implication of clumsiness, this came to mean "do work badly", and then "destroy deliberately."
Ha! Dedicated to my two Saboteurs!