I learned this cute tidbit of information from my sister..The way Simon is positioned certainly confirms the information in the article that she told me to look up :-)
https://blogs.discovermagazine.com/d-brief/2014/01/02/dogs-align-themselves-to-earths-magnetic-field-when-pooping/#.UtMw_XlvbwISimon is aligned along the North -South Axis ... The sunset is always seen behind my fence that is pictured here :-)