A flock of geese is usually better than a dog or two.
They make a heck of a racket, are vicious and are less likely to get used to people.

Plus there is less chance of the cops coming round cos they've attacked someone (as far as I know there is no such thing as the Dangerous Geese Act)

You have got to keep their wings clipped though, but you also get big eggs for breakfast

Too old to die young, too ugly to leave a good looking corpse