Anet, my three year old niece, know all too well that all good things come on a Sunday. She knows that she gets to put on her best clothes on a Sunday; that Sunday is the day we go to Church (not that she is any way devout, yet!); that everyone is at together that day; and most importantly, all family travel, that too by car, is mostly always on a Sunday. So 'Sunday morning' is a good thing for her! Everytime they want to tide over a tantrum, they 'postpone' it to 'Sunday morning' and she is more than satisfied - even if that done on a Sunday itself!