I dont know where she's got it from, but I know she doesn't do anything like this at pre-school.
She has always been aggressive but I am becoming increasingly worried as she has started to headbut dd1-5.
Usually it is on the arm but this morning she did it on dd1 ear.
I do use the naughty step but she doesn't really care, infact most punishments don't seem to bother her! I've tried sticker charts to no avail either.
Any advice would be greatly appreciated as I am at the end of my tether