Parker: I thought my foster parents just wanted me so they could get money from the state, but now I realize they didn't love each other.

Okay, Parker was undercover but she still had dodgy foster parents. It's unfair that these children are only taught to fend for themselves and as they grow up have trust issues. At least with adoption, the arrangement is taken more seriously because it's permanent. Case workers can only do so much.

I can understand why Brennan felt abandoned by her older brother Russ even though he wasn't that much older than her at the time. At least they reconciled later on.