As you might know, my cats best friend got killed by a car on Monday morning and has showed signs of sadness ever since. Today, I reached down to pet him and he made a deep grumbling noise that sounds like "nrrrrrm". He's just slouched against the wall now. He isn't eating much, and his appitite is usually large. Is he depressed? And he's an outdoor cat so should I be worried about feline suicide?
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