I have been watching my neighbours 3-year-old, twin daughters for a month and a half now. One of the twins constantly screams, throws fits, hits, pinches and displays horrible behavior. The other children are scared of her and her twin will not even go near her. I have brought it to their mothers attention, numerous times, but she seems surprised and doesn't really care.
She cannot follow rules and has trouble with EVERY, daily transition. It doesn't matter what I do to accommodate her, redirect etc. When I put her on a time out she does a high-pitched scream, hits me in the face and refuses to stay on a time out. The screams will last for an hour!

Mom, has dropped the girls off with untreated bladder infections (the little one cried for two days straight), Mom asks me to take urine samples for her, drops her kids off in the morning while they are in the middle of a morning fit and then shuts the door for me to deal with it. I feel like there are extreme boundary issues!

The big problem.....they live right next door! I have three children of my own (one of which a baby), a 1-year-old and a 3-year-old, plus her sister. Our day revolves around her fits and my boys were late every morning for school, as she didn't want to go. This morning my baby was hysterical when they walked through the door.

Am I over-reacting? If not, how do I nicely terminate them?