First, if the job seems unimportant to you, you can choose to leave. Second, you can refuse him when he is rude to you. You can tell him what will happen to him. You will lose a job at most, and his loss is much greater than yours. Of course, before that, you can find an opportunity to record his indecent behavior to you by phone or other recording equipment. This is evidence. Don't hide anything from him. Make him think that you are not afraid of him. If you show fear and nervousness, you will achieve his goal. You are braver than him. You tell him it's not good for him to talk about this, and I hope to respect yourself. Don't be afraid of him. He should be afraid of you.

Say to your sister, be sure to say, this is for your sister's good, for her to suffer more harm in the future. If you just choose to leave, it can also find other girls. I wonder why such a man is so shameless. Rabbits don't eat grass near their nests, even their relatives. I think such a person should warn him and let him know the pain of doing so. To put it bluntly, the family needs someone to beat him up and warn him.

If you want to leave here and resign, then you can criticize him face to face and then choose to resign first; If you have no choice but to go forward, then you often praise him for his good style and good people in front of everyone, or when he is rude to you, you say, "The boss is a good leader that everyone says, so don't give me a bad image!" So he won't be too presumptuous because of his position in your heart. Wait until the time is right!