Here's another angle on ER abuse. I have a relative who got divorced some years back, and her ex-husband had to pay the kids' medical bills. You can probably guess what she did - doctors' appointments almost every day, trips to the ER if there wasn't anything going on during the weekend, just to soak him. It finally stopped when the kids told her that they didn't want to spend their free time in waiting rooms.
This was a situation where neither parent should have had custody, and there was a stretch where I honestly believe those kids would have been better off in foster care. Someone on another board said, "Are you aware that if a child wasn't sexually abused when they went into foster care, they will be by the time they get out?" and I replied, "Yes, I am, and they STILL would have been better off." Speaking of which, it wouldn't have surprised me if she tried to play that card as well. Would he have done it? Of course, I never lived with him, but truthfully, even if he was a pedophile, he wasn't interested enough in the kids to do anything like that either.