Piss Off Barrett is an achievement in Deus Ex: The Fall. It is earned by countering Lawrence Barrett's taunt for refusing to kill Mikhail Kontarsky.


While on the Tyrant Jetliner, visit Barrett's room adjacent to Ben Saxon's. Talking to Barrett will lead to a brief conversation where he criticizes Saxon for being "gun-shy." Choosing the option to challenge him grants the achievement.


  • It is essential to spare Mikhail Kontarsky to obtain this achievement.

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