Hi Makingdo,
You've just kindly replied to my thread, now I can help you feel better on yours!
I did the same last year to my DD; I slammed the door on her fingers when I was trying to escape from her into the garden; as I was on the phone to a client.
I was a REALLY bad mother because I heard her scream and cry, sort of knew I had shut the door on her fingers, but carried on the call regardless. What a cow I am. I've never got over it; even my laid back DH told me off.
You indident was a complete accident so please don't be hard on yourself. Little hands get stuck everywhere. At least you dealt with her immediately!
xx