Then there are dogs that eat feces out of anxiety. For example, if a dog has been punished for defecating where it should not, thereafter the first thing it will think of after defecating is to "get rid of the evidence."
還有些「狗吃屎」則是出於焦慮，例如狗狗曾因隨地大便被處罰，之後一「便」完就會想「毀屍滅跡」而把便便吃掉。