To understand and address a cat's anger, consider environmental changes, routine disruptions, boredom, or lack of stimulation. Check for any signs of illness or discomfort, as pain can cause irritability. Ensure the cat has a safe, quiet space and enough mental and physical stimulation through toys and play. Observe any patterns in behavior to identify specific triggers. Consistent, gentle interaction and respecting the cat's space can help. If the issue persists, consult a veterinarian to rule out health problems and for tailored advice.