Since Harry lives with Dudley (so he obviously knows about magic), why does he get into so much trouble regarding his patronus (other than the underage magic part)? So... is that the standard punishment for all underage magic or is it b/c of Dudley or just b/c he is Harry and the ministry doesn't like him? And if it IS b/c Dudley being there, would Hermione get the same treatment if she performed a spell in front of her parents?
Thanks in advance, these questions have been bugging me for a while now.