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My cat is so nice she brought me a little DEAD mouse in the morning. Morning = 3AM. She was so proud of herself... >>
And... how proud were you, being awake at that hour for a dead mouse?
Btw, we used to have 2 dogs at home too, at the same time as those 2 cats. If any cat from the neighbourhood chased our cats they'd just run back into the garden and stand between the legs of one of the dogs, that would stop any cat from continuing the chase
And the other way around, the cats would beat up any dog that tried to get into the garden.
If you want a pet you can play with, take a dog. If you want another 'person' in the house, with a personality and a will of its own, take a cat.
If you like animals, take both, but take a puppy when you already have cats, so the dog gets used to cats while it's not a problem yet.
Edit: Typo fixed