Ok, so our first au pair, who's been with us about 6 weeks (since husband left) texted me tonight to tell me the youngest of my three (8yrs old) had moved a shelf in the lounge, and that she had tried to put it back but it fell down (sad face).
I came home from work to find everyone in bed and 4 bookshelves and their brackets (they are connected with sturdy spur shelving) on the floor, with hundreds of my books all over the floor. The shelves that have fallen started about a 1.5m from the floor, so she'd clearly climbed up quite a way.
I've come home a few times to find the children watching tv and running round making mess with her just sitting in the midst of them reading and ignoring them. My daughter has said that she often retreats to her room when I'm not there too. I always come home to a bath full of dirty water and toys and clothes out everywhere. Someone's also drawn all over the bathroom wall in biro.
This is clearly not normal behaviour of children of this age who are being supervised, and so I think now it's safe to assume that they're turning feral, Lord of the Flies-style, as a result of lack of supervision.
Obviously I'm going to have to let her go, but am I stupid to get another au pair? Is this the normal level of 'childcare' I can expect from an au pair, or are there good ones out there?