Please give your opinions on this?

I have been tutoring part time for several months. I'm about to quit anyway because I've already reached the financial goal that I was aiming for. One particular home I tutor in really turns my stomach. First of all, the apartment is disgusting, dirty, and unsanitary. The parents are constantly screaming, slapping and cursing at the children while I'm there. They are polite and cordial to me but they treat the kids with so much nastiness. One time, they had a domestic dispute while I was there and I was unnerved. Should I not go back? What if I get caught up in something? If I do go, I only have 2 more days. What would you do?