EXPLOITATION
feel put-upon
to feel taken advantage of or exploited.Bill refused to help because he felt put-upon.Sally's mother felt put-upon, but she took each of the children home after the birthday party.
take advantage of someone or something
to utilize someone or something to one's own benefit.Jane can be of great help to me, and I intend to take advantage of her.Try to take advantage of every opportunity that comes your way.