In the AmaZulu (Zulu) culture, when two people are walking together they should never allow a person or object separate them, I experienced this when walking along a street with my girlfriend, as I attempted to move to the right of an individual walking toward us, he moved to the same side, to avoid him I altered my position and he continued to obstruct me. The man would later explain that you do not allow some to separate you. I believe this is a common praction throughout Central and South Africa, and possibly other areas. Also to prevent and pull tightly, which would always stop the dog. This is found in AmaZulu culture and is also probably common in other West, Central and South African cultures. They also place bottles of water in their yards for the same result. AmaZulu culture is a combination of the various practices of Congo and the Great Lakes region and the Xhoi Xhoi poeople of Southern Africa. I find that most so-called superstitions practiced in the Southern states are of the Congo, including jumping the broom, black cat bones, nguba (peanut) etc. Even the term Gumbo is of Congolese origin (Chigombo) which in Ghana is called Okra.