The person who every time they sees you hates you, says they hate you and accompanies it with an obscene gesture-- after a while this person can't hurt you. Right?

一见到你就讨厌的人，他们说讨厌你,边说边做着鄙夷的手势-,但这些人并不会伤害到你？

耶鲁公开课 - 心理学导论课程节选