RIDDLE:  What purrs like a cat but is not a cat?

ANSWER:  Beau the Basset Hound

I've never had a dog that purrs, or even ever heard of one that does, but I do now.  Beau actually purrs like a cat.  It's when I am cuddling with him and he feels very safe and contented, I'm guessing.  At first I thought he might have once lived with a cat, but since he seems to hate them I doubt that is the case.  Whatever the reason, it is the most endearing thing.  I have found a truly sweet and loving friend in my beautiful Beau.