Always rummaging through other people's cupboards to eat, love to take advantage. Can a boy talk about his personality and usual style?

I met this kind of boy in college. I remember there was a buddy in a dormitory next to my class. He usually doesn't want to go down to eat, so he asks his roommate to bring him food, and others bring him food and ask him to pay. Sometimes he gives others fifty cents or a dollar less, which is a sign of greed and cheapness. Moreover, he is thick-skinned, and others say that he is lazy and likes to take advantage of petty gains, but he still goes his own way every time he eats or asks others to run errands, and he is also the kind of person who feels bitter in class and has a particularly fierce mouth.

People who love to touch other people's things and are greedy for petty gains are all thick-skinned and petty at first. They belong to the kind of mean people who love to haggle over every ounce. This kind of person is not decent. In short, it is better to have less contact with such people.