A few years back I was in business Cathay Pacific, and had an option of steak or a list of many asian meals, and unfortunately the steak wasn't available by the time they reached me, and I really didn't fancy an asian meal. So after she told me the steak wasn't available, I politely declined and said i'd be happy without a meal, then a few minutes later was suddenly presented with the steak.... :-) I found it unusual, but was happy nonetheless.
Often in business I decline the meal, as it just seems such a faf and takes so long and i'd rather sleep. Yet when i'm in economy, i'm quite happy to eat it as anything that makes the time pass quicker is welcomed...