No written law has ever been more binding than unwritten custom supported by popular opinion.
The Sookie Stackhouse novels were selling well before the TV show, but the TV show led to a lot more exposure and readers. And a lot went on to read my other work. It was a wonderful thing for my bank account.
Once vigorous measures appear to be the only means left of bringing the Americans to a due submission to the mother country, the colonies will submit.

