Overview EditDuring the Middle Ages, certain sluagh in northern Europe, and especially in the British Isles, took it upon themselves to punish a particular subject of wrongdoers: corrupt innkeepers and monks. Human histories from the time are full of tales of monks growing fat on worldly pleasures and innkeepers putting sand in horses' feedbags or watering the wine. Fae historians speculate that because these two groups specifically broke promises by their behavior, they held a special attraction to vengeful sluagh. That they were adults, and so not protected by the sluagh secret oath not to harm children, also made them easy targets.
Thus were created the order of sluagh known alternately as the Abbey Lubbers, Buttery Spirits, and other less-complimentary things. While no different from other sluagh in any real way, the Abbey Lubbers found themselves drawn toward performing their tricks on these particular subsections of mortals. On top of that, they discovered a hitherto unknown urge to show off and became rather noisy in their efforts to correct mortal behavior. After some reservations, other sluagh had no problem with this; the extreme antics of the Buttery Spirits provided a distraction for the activities of sluagh who preferred to keep a lower profile.
Regardless of motivation, Abbey Lubbers and Buttery Spirits functioned according to similar methods. They infested debauched monasteries of men (though never women's convents, for some reason) and inns where travelers were cheated, and set to work. All tainted foodstuffs, whether the overly-rich fair of the "poor" monks or the substandard victuals offered by cheap innkeepers, were alternately destroyed or devoured by the insatiable sluagh. On top of that, the sluagh responsible made certain to have reputable witnesses to spread the word. This began a self-perpetuating cycle: sluagh assaulted the holdings of the corrupt and sought reliable witness, while these witnesses in turn attributed the sluagh's actions to the corruption of their targets. soon, even the rumor of an Abbey Lubber was enough to tar the reputation of an entire monastery while the crash of a plate licked clean by a Buttery Spirit could ruin an inn's name from Calais to Whitby.
These sluagh also paid special attention to those individuals responsible for drawing the sluagh's notice in the first place. Overindulgent monks were forced to swallow mouthful after mouthful of ill-gotten goodies. A rare few incorrigibles were drowned in tuns of wine and the murderous sluagh made sure to spoil the best in the cellar this way. Innkeepers had sand or animal food stuffed down their throats while those who shortchanged their customers could frequently be found in the stables in the morning, feedbags full of dirt strapped to their faces.
See also the article Killmoulis.