Anyone who has spent time around horses will tell you that they can be happy, pleased, angry or mean. They do have emotions, and they certainly can interact with their environment and feel things. When horses die, other horses close to them exhibit grief-like behavior, which can become excessive at times. Recognition of this phenomenon is important for equine veterinarians because clients will seek help in dealing with these situations. Being aware of grief loss in horses and being willing to help treat these situations will allow you to help both horses and their owners. It is likely that we eventually will find that many behavioral and emotional states currently assigned only to humans, such as paranoia, schizophrenia, attention deficit disorders and many others also are all found in horses. Their recognition, diagnosis and treatment will help improve life for many horses that currently are thought of as "untrainable", "spooky", or simply "crazy". It actually might be far crazier to assume that these horses do not feel many of the same things that we do and need treatment just as much.