He likes to profit himself at the expense of otherstake advantage of利用;并不是占便宜.占便宜gain extra advantage by unfair meansprofit at other people's expense占便宜 [zhàn pián yi] (取得额外利益) gain extra advantage by unfair means; profit at other people's expense:Don't profit yourself at the expense of others.不要占他人的便宜。