Tell me what kind of personality do you find most disgusting?

Selfish people are the most disgusting I always only consider my own interests, regardless of the feelings and interests of others. A colleague in my previous unit is such a person. I remember that once the company sent out all the apples in boxes, but he secretly gave himself all the big apples in a box. I found it later and put it back. I think this kind of person is the most selfish and disgusting!