Focus: Educate the owner to detect changes in behavior (hiding, not eating, changes in character).
Pets are experts at hiding their pain, so you must watch for very subtle changes in their daily habits. For example, a pet in pain might hide in quiet places, sleep much more than usual, or suddenly become aggressive when you touch them. You should also look for physical signs like limping, a hunched back, or heavy panting when they are just resting. If you notice these unusual behaviors, the best thing to do is visit your vet to check their health.
