What does the saying each dog barks in his own yard mean?

The saying "each dog barks in his own yard" is a metaphor that means people are most comfortable and confident when they are in their own familiar territory or area of expertise.

Here's how to break it down:

* Dogs: Represent individuals.

* Barking: Represents expressing opinions, ideas, or criticisms.

* Own Yard: Represents their own domain, comfort zone, or area of knowledge.

Essentially, the saying suggests that:

* People tend to be more vocal and assertive in areas where they feel confident and knowledgeable.

* They may be less likely to offer opinions or criticism in areas where they feel uncertain or less experienced.

* This behavior is natural and understandable.

It's important to note that this saying doesn't necessarily imply arrogance or negativity. It's simply a recognition that everyone has strengths and weaknesses, and that it's natural to feel more comfortable and confident in some areas than others.