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“One of the authors, then a department head, found that this worked when a colleague was trying to manipulate and bully him (about office space); looking right at the colleague and loudly saying, “Don't mess with me, Jack. I teach negotiations!” made him back off. Jack was much nicer from then on, because he assumed his ploys wouldn't work.” — Allan R. Cohen
One of the authors, then a department head, found that this worked when a colleague was trying to manipulate and bully him (about office space); looking right at the colleague and loudly saying, “Don't mess with me, Jack. I teach negotiations!” made him back off. Jack was much nicer from then on, because he assumed his ploys wouldn't work.