'When thou makest a dinner or a supper, call not thy friends nor thy brethren nor thy kinsmen nor thy neighbours who are rich; lest perhaps they also invite thee again, and a recompense be made to thee. But when thou makest a feast, call the poor, the maimed, the lame and the blind. And thou shalt be blessed, because they have not wherewith to make thee recompense: for recompense shall be made thee at the resurrection of the just.' (St Luke 14:13)
Our Lord's dinner party guidelines are surely among His least popular and most rarely observed teachings.