I have 9.5 donkeys - and yeah, they dislike dogs.
They do not like to be alone - they crave company, that is probably why that neighbor's donkey is so loud. They will call out to find others to hang with. We have a neighbor who has one donkey, a miniature donkey, he sounds like a foghorn and he is almost a mile away - we hear him quite well, here.
Mine will hee haw at dinner time, or breakfast time - or anytime they think they need food (which is usually when they see me walk out the door
) Not all of them hee haw, but with 9 donkeys if even half of them do, it gets loud. Personally, I love the sound of donkeys.
If you do get a pair, and don't want babies, make sure if you have a jack it is cut - intact jacks can get agressive when the jenny is in heat.
If you do get donkeys and they bray a lot, then the way to break them of it is to not cater to their noise - in other words, if they are braying just to get your attention, and you do not want them to bray every time they see you, then don't go out to them right away when they bray - make them wait.
Donkeys are very smart - and they can be very sensitive (emotional).
I would suggest a donkey to anyone. I absolutely adore our donkeys. I can't wait til Mama donkey has her baby next spring.
meri