Definition & Meaning of "every dog is a lion at home"

What is the origin of the proverb "every dog is a lion at home" and when to use it?

The origin of the proverb "every dog is a lion at home" is often traced back to ancient cultures, particularly in the Middle East and Europe, where similar sayings have appeared in different forms. The phrase suggests that individuals tend to feel more powerful and courageous in familiar surroundings, just as a dog may seem brave or strong in its own home but behave differently when faced with unfamiliar situations. It emphasizes that confidence is often linked to comfort, and people may act more boldly when they feel secure in their environment. The proverb is commonly used to remind people that true strength is tested outside of one’s comfort zone.