Nasruddin was riding his donkey to the market, with his son walking along beside him.
As he passed a group of travelers going in the opposite direction, he overheard one of them saying "look at this cruel old man, riding in comfort while his son has to walk." Caring very much for the opinion of others, he got off of the donkey and told his son to ride.
He passed another group of travelers, and overheard one whisper "look at the silly old man, walking his life away while his young, strong son rides in comfort."
He tried riding behind his son, but overheard people criticizing his cruelty towards the overburdened beast. He tried having them both walk, and was criticized for not realizing that donkeys could be ridden.
Finally, in frustration, he ordered his son to help him carry the donkey. As they both struggled to lift the large and uncooperative beast, another group of travelers approached, staring at him in confusion. Before they could say anything, he shouted at them "Shut up, I don't want to hear it!"