No kidding,ZhangSan is still too selfish.
Why?Because Zhang San regard all his friends,teachers,classmates as individuals and give them the freedom and respect they deserve.Because Zhang San knows they don't belong to Zhang San.Zhang was willing to give them help to make them better within his power.However,for Mr.Zhang,he never care for who he really concern about.He thinks what he concern with belong to him,will never leave himself behind anyway.He has a conception of the one in the possesion of him never leaving him no matter what happens.He vented his anger on himself and lost temper.Will he give himself a slap?No,he won't.Mr.Zhang is still not sure how to keep a man he wants to keep.He kept trying to avoid pretending that he had feeling for these people.But the impossible thing is that the person will be farway whetherb you want to keep her.