Convincing one's mother to get a divorce

Q: My father has been treating my mother with unnecessary banter and quarrels for about 20 years now. I don't remember a time in my house where we openly laughed. My father does not love my mother, because if he did he'd see the pain he's causing her. My father yells at my mother for no reason and accuses her of such she didn't do. He doesn't trust her as well. He's been causing her all this pain and she's been dealing with it just for her two daughters. I suggested she divorce him. My dad has had a previous wife as well which he divorced. What should I do? Should I convince my mom to get a divorce and be happy?

Deceiving to get a job

Q: I would like to know I have done a course in sap basis and I want to apply for a job as a fresher. I won't get any offers so in my city I can get experience by paying amount to the consultant. Hence by adding that experience to my resume is allowed with actually not working for those company's. Is it ok in shariyah to do this, please advice me.

Warning someone about being deceived by a certain person

Q: I have given some money to a person who promised me to give me back on Wednesday but he didn't, then he promised to give me Friday and he broke his promise again. Likewise it is more than a week now and I still did not get my money back. I fear he might have tricked me to take money from me and he actually didn't need it urgently.

1. My question is that he also knows my brother and he may ask my brother for money as well and he do the same to him. Can I inform my brother about this so that he is aware of the situation and he does not get tricked?

2. If I complain to my brother about him then this will this be counted as back biting (gheebat) and I should not tell my brother?

Spouses urinating and excreting on each other during sexual relations

Q: My husband insists that we do golden shower (where he urinates on me and vice versa) and scat (where he stools on me and vice versa) during foreplay as this is his fetish. Is it allowed that we do this? I am scared that he maybe hit and abuse me if I refuse him of this pleasure. He also wants to ejeculate semen in my mouth when he cums. Is it allowed for him to do this because he says I will be getting sin and punishment if I do not obey him. Please give me some advise on what to do.