Surely any animal if bred for long enough can produce a domesticate form of some kind? Breeding the animal to maybe smaller, more docile (in the thread example lets say a Hyena is reduced to the size of a Chihuahua).
That's not true for every species.
Wolves have a 'genetic plasticity', this is, the way that its own pool of genes can be combined to result in such different morphs (from Rottweilers to Chihuahuas) very high.
But not all species have this 'genetic plasticity'. If you compare dog races to the cat ones, you'll see that the different races of cats are not that diverse in sizes and morphs (there are not cats several times bigger than other ones). And this is because the cat gene pool is not that diverse and lacks of the plasticity of the dogs one.