You know, we'd been warned that donkeys will maim and kill small animals. We also read an article about using them for guarding.
We got our first donk, a standard jenny, and she is the sweetest southern belle this side of the Mississippi. She walks very softly, watches the JRT's run around her feet; no aggression.
We then got a mini donk, Paco, because we love Beatrice so much. He is gelded, but he acts like he has enough testosterone to take on War Admiral at the gate. He has stomped one JRT (not 'bad' but enough he can't be trusted) and chases the goats, kicks, bites, and herds the above mentioned standard, and is really an aggressive little bugger.
Good with people though. His last home he was a starter for horseless 4H kids - he can be led around, climbed around, kissed, and he's great. He just doesn't like little animals.
Age may also have a
little something to do with it - Beatrice is 24. Paco is 4.