Among the Karankawa there exists an in-law taboo. Once a man and his wife have become in the Karankawa sense, married, the husband and his children are now no longer allowed to enter the residence of his wife's parents nor can his wife's parents enter his or his children's home. These two groups are also no longer allowed to talk with one another and must never come face to face with one another. If there is the danger of coming face to face with one another both parties must avert their eyes and move away from each other. This taboo only seems to apply to the husbands and their children, most likely due to inconvenience on the wife's part as Karankawans are typically patrilocal.