ated ▁ 1 9 , 6 4 9 ▁cases ▁of ▁sab ot age ▁and ▁concluded ▁the ▁enemy ▁had ▁not ▁caused ▁any ▁of ▁them . ▁ ▁Sab ot age ▁in ▁war fare , ▁according ▁to ▁the ▁Office ▁of ▁Str ateg ic ▁Services ▁( O SS ) ▁manual , ▁var ies ▁from ▁highly ▁technical ▁coup ▁de ▁main ▁acts ▁that ▁require ▁detailed ▁planning ▁and ▁spe cially ▁trained ▁oper atives , ▁to ▁in numerable ▁simple ▁acts ▁that ▁ordinary ▁citiz en - s ab ote urs ▁can ▁perform . ▁Simple ▁sab ot age ▁is ▁carried ▁out ▁in ▁such ▁a ▁way ▁as ▁to ▁involve ▁a ▁minimum ▁danger ▁of ▁injury , ▁detection , ▁and ▁repr is al . ▁There ▁are ▁two ▁main ▁methods ▁of ▁sab ot age ; ▁physical ▁destruction ▁and ▁the ▁" human ▁element ". ▁While ▁physical ▁destruction ▁as ▁a ▁method ▁is ▁self - ex plan atory , ▁its ▁targets ▁are ▁nu anced , ▁reflect ing ▁objects ▁to ▁which ▁the ▁sab ote ur ▁has ▁normal ▁and ▁incon sp ic uous ▁access ▁in ▁every day ▁life . ▁The ▁" human ▁element " ▁is ▁based ▁on ▁universal ▁opportun ities ▁to ▁make ▁fault y ▁dec isions , ▁to ▁adopt ▁a ▁non - co oper ative ▁attitude , ▁and ▁to ▁indu ce ▁others ▁to ▁follow ▁suit . ▁ ▁There ▁are ▁many ▁examples ▁of ▁physical ▁sab ot age ▁in ▁w art ime . ▁However , ▁one ▁of ▁the ▁most ▁effective ▁uses ▁of ▁sab ot age ▁is ▁against ▁organizations . ▁The ▁O SS ▁manual ▁provides ▁numerous ▁techniques ▁under ▁the ▁title ▁" General ▁Inter ference ▁with