כֹּֽבֶד־אֶ֭בֶן וְנֵ֣טֶל הַח֑וֹל וְכַ֥עַס אֱ֝וִ֗יל כָּבֵ֥ד מִשְּׁנֵיהֶֽם׃
A stone is heavy, and the sand weighty; But a fool’s vexation is heavier than they both.
Rashi on Proverbs
the anger of a fool that a fool angers the Holy One, blessed be He, causes [Him] to bring anger to the world.