A man consciously marries a woman related to the non-human world
Cow (ox, bull) helps an orphan child or a young woman who got into trouble
Person accidentally overhears secrets of animals or demons and thus gets to know the causes of his and other people's misfortunes
While person is asleep, another smears with excrements or something that reminds excrements his or her bed or clothes. The ashamed person runs away or agrees to make what the trickster wants in exchange of his silence
A (young) man sets off to find or to return his bride or his wife
Person takes from the ear of an animal (usually a horse or a cow) food, clothes and other valuables
An animal (a demonic being) asks the hero or heroine to take objects necessary for him (her) from its ear or to enter its ear to make himself or herself handsome, to sleep. etc.