Why Your Cat Hisses
Most people instinctively know that a hissing cat is not a happy cat. They usually hiss when they are angry or when they are feeling irritated.
Sometimes though, they hiss when they are feeling afraid. If they feel threatened by a stranger in the house or another animal, they hiss to let you know that they are feeling on edge. If you hear the hissing sound, it’s best to stay away because they would rather calm themselves down than have you pet them.