Mulla took a sack of grain to the mill. When the miller turned his back, Mulla started scooping flour out of other people's sacks and dumping it into his own. The miller caught him and shouted, "What do you think you're doing?!" Mulla played dumb. "I'm sorry, I'm just a fool. I don't know what I'm doing." The miller crossed his arms. "If you're such a fool, why aren't you scooping flour out of your sack and putting it into theirs?" Mulla replied, "Because then I'd be a double fool."