When my younger brother got married, his sister-in-law insisted on inviting a boy from her mother's family to "roll in bed" with her. Out of good intentions, I suggested that my family stop this activity, but the whole family yelled at me and kicked me out of the wedding banquet. I shrugged, not caring. It's hard to persuade the damn ghost with good words. The child who "rolls out" must at least have blessings in order to provide help for the newcomers. But this boy from my sister-in-law's family is clearly full of sins.