So have I, I've taken in foster children in the wee hours of the morning because of abuse. Broken arms, bruises, cigarette burns, rape victims, all children abused by their parents.
Unfortunately I have too.

One case I had involved a woman renting her kids out for sex to pay for her dope habit.

Those kids are adults now and all four of them are doing great, which is a small miracle in of itself. I get frequent visits from all of them too.