My wife is the daughter of someone else

In that village there was a glutton. One day,he was invited to a feast. After eating his fill, he still asked the host for a big pack of sticky rice for his wife and children at horne.On the way home, he saw a big tree by the road and came there to take a rest. While sitting for the rest, he looked at the pack of sticky rice, muttering to himself :- My wife is the daughter of someone else and it is she who gave birth to my children. Thinking carefully, I have no relation with them at all. Why don't I eat the sticky rice but keep it for them, eh?Thus, he opened the pack and ate up the sticky rice.