Attending a feast without being invited

It is very ill-mannered for a person to attend a feast without being invited. At times, there is no food for those who have been invited. And this happens because people who were not invited have eaten. To eat at a place without invitation is like a thief who has stolen something and went away.

[English version of "Alle mangé sans invitation" – Al Jamiat – Vol.2 No.10]