Ghosts in Thai culture may be benevolent. Certain ghosts have their own shrines and among these there are some, such as the Mae Nak Phra Khanong shrine in Bangkok, that are quite important. Usually though, humbler tutelary spirits live in little dwellings known as San Phra Phum (Thai: ศาลพระภูมิ), small ghost shrines that provide a home for these household or tree spirits. These shrines are common near trees and groves and in urban areas, close to buildings. It is considered a bad omen to neglect these spots and offerings are regularly made by people living nearby.[18] Usually offerings to tree spirits are small things such as small food items, drinks, incense sticks or fruits, but when important favors are requested it is common to offer the head of a pig. After the ceremony is over the pig head is brought home and eaten.[5]