As might be predicted, however, that people perceived first-in, first-out as the most fair, random order as slightly less fair, and last-in, first-out as the least fair. And so while lines could be made more efficient, it would come at the expense of perceived fairness, and any improvements to wait times might be cancelled out by anger and discontent from line participants. What's the most fair, it turns out, isn't always what's optimal, and vice versa, so organizations in general, when faced with such a conflict, would need to decide what it is that they value more, and if they're OK with the trade-offs that come with their choice.