回复：就是不知道怎么说，才没说.但小人可真是不能得罪,得绕着走,尤其是工作岗位.

you do not have to use these words, you do not have to confront the scumbag if the circumstance does not permit.

but we all know knowledge is power. It does not hurt you to know/be aware of these words, or tricks of backstabbing, setting up traps to others.....