My Diamond (Chihuaha) is bat shit crazy. She will attack a stray cat, and locks on like a missle, bee lining right for it, but when she gets to fighting, she sounds like shes dying a painful death. She comes back "strutting like a badass". When anyone pulls up on the property, she will lift her ears, and maybe growl, but if she hears a car door, or someone steps on the porch, she goes apeshit crazy, usually hiding under the TV stand.