I'm a teacher, not a babysitter. But, when kids are afraid to go home or have their parents contacted about anything, there is something going on that raises red flags (and will, possibly, leave the kid fu**ed up for years to come).

I had a student a few years ago who broke down in tears in front of me, begging me not to email his mom. He had cheated on a test and was so scared of his mother finding out that, after the crying, he threw up in the trash can.

If you are that scared of your parents, then something is majorly wrong.

When I was around 12 I'd babysit this family with 4 kids, usually for around 9 hours at a time. The older two were manipulative a******s who would convince the younger two(twins) to do what they wanted knowing that the twins would be the only ones punished. I caught on pretty fast, partially because I got the chance to babysit the twins alone and they were angels. The oldest especially scared the hell out of me, she was a monster, I'd regularly call my mom crying and begging for help because she stopped bothering to try to seem like a good kid after I started punishing all four of them when the older two got the twins into trouble, and she knew I saw through her. She was regularly on the front of the town paper for doing nice things, and went to church etc, so everybody who didn't know her well loved her. She is a teenager now and is still a manipulative person who tries to ruin peoples lives if she doesn't get her way.

Another kid I worry about is a total sweetheart, but he seems to have a very addictive personality and is incredibly competitive. His gaming time has to be very carefully regulated or it will completely take over his life and he'll start getting anger issues. He can't stand losing games to the point where he kicked the board over and stormed off crying when we played snakes and ladders because I landed on a ladder, despite still only being half as far along the board as him.

Edit: Also the two boys around 5 and 7 who made a game the revolved around trying to grab my boobs. I don't really know what I expected after their 13 year old sister/my classmate told me she had trained the 2 year old to fetch her beer on demand.