The brownies (also known as the brown man, the buckhold, buckwans, or bwca) might be the nearest approximation to a benevolent faerie that one may encounter. A brownie adopts a single home or family and performs tasks such as cleaning, repairing clothing or shoes, or keeping away boggarts. Brownies that are disparaged ofttimes abandon their homes.
Boggarts (or boggle, boggie, or bogey man) may be nothing more than brownies who have turned evil. Whatever may have occurred they are the exact opposite. They hide items, destroy clothes, eat wood, and wake sleeping babies. Boggarts are nearly impossible to drive away although some can be exorcised or tricked.
Solitary by nature, brownies are part of the Sidhe Court and boggarts are part of the Unseelie. Both appear as small men, just over one foot tall, covered in brown fur or wearing brown clothes. They run and hide from adults, although children can see them as can other supernatural creatures and magicians.