Two millimeters tall, wee folk are easy prey for predatory insects. They therefore seek out virtuous people to keep them safe in decorative glass terrariums. They are masters of sand-grain masonry and moss gardening, and will quickly shape their new home to suit their needs. They resent being kept in captivity,but it is better than life in the wild.
Sometimes their keepers are cruel, and put spiders in the terrarium to watch the tiny people fight. If their need is great, the wee folk will risk an expedition, undertaking a great journey from their home, down the table, across the floor, climb the bed, crawl up their keeper's nose, and set off tiny mining charges. The keeper will awaken to a strange tickling sensation, shortly before dying of internal bleeding.