People who live in grass houses shouldn't stow thrones.
So rich he had a GOLDEN throne - the ENVY of the neighboring tribes.
One day, the neighbors invaded, intent on capturing that throne for themselves. And, since the wealth of the king's tribe had gone into the throne, they had very little left over for defense.
So the king and his subjects dressed as beggers before the warriors arrived, aiming to fool them much like the Gibeonites fooled Joshua.
With the golden throne stored in the attic, the invaders were so upset at not finding it, they stampeded the village's cow herd thru the town. The joustling of the beasts against the kings hut is what caused the great fall that skwooshed him!