In the Kingdom Of Brand, everybody wears a crown except for the king.
Brand is a fairly wealthy region, with many productive gold and silver mines.
Since coins are fairly useless in a rich country, people turned all the excess precious metal into crowns.
At first, the king commissioned a bigger crown, but everybody wanted bigger crowns, too.
Pretty soon, everybody’s neck and back were sore.
The wise king took off his crown, and he never put it back on again.
As for everybody else, well, they’re just stupid.
And bald. So, to cover up their heads, they wear crowns.