That's a terrible thing to have happen. It's going to take some time for them to recover from a blow like that! So far as helping her to trust again, it's hard to say what will work. In my centre, I run things with the parents very informally. It may sound silly, but I befriend the parents as well as the kids, and plan grown up and family activities with them off hours (BBQS, movie nights and the next is a horseback riding wknd for adults only). Often, they'll even come in during pick up and spend a chunk of time chatting, maybe having a coffee, etc, before collecting the kids to go home. Like I said, it may sound silly, but I like having that rapport with my clients as I think it really puts them at ease. When they spend time with me, they're getting to know me, thereby, getting to know the type of person I am and building trust. I have found this very successful and came about it haphazardly. I like my clients, they like me, we hang out, they see who I am and how I am with their kids.