DD1 started special school on Thursday. When I went to collect her she was calmly playing with a pot of buttons, and happily left the classroom with me.
I thought to myself "oh, I hope they won't think she doesn't have any problems and chuck her out".
I didn't need to worry. When I went to collect her today, I saw through the window that she was struggling with a TA. It turns out that they wanted her to do a group activity, and she was having none of it.
She had also been obsessed with snack and lunch, and kept banging on about playing with water.
The TA said she was very 'self-directed' 
That's my girl...
They sound well up for it though, so that's a relief.