In Thai custom, after the cremation, everyone takes a red thread which they wear for three days so that the ghost of the dead person does not follow you home. In Lao custom, people wash their hands in scented water for the same reason. Does anyone know what the custom is for Vietnamese Buddhists? I've found some general funeral information by Googling, and although I was just in Vietnam, I felt a little strange asking people I was start starting to work with, "So after a funeral, how do you prevent the ghost from following you home?" Thanks in advance.