I don't know much about the Highland cattle, however my wife and I used to own a Belgian. Ours was a gelding, so we did not have any "stallion" issues. Ours was quite a character, the breed is for the most part, very easy going. The one we had was unfortunetly (sp?) somewhat spooky. He would startle at little things sometimes. Ours was the American, or more modern breed, bred somewhat for looks and confirmation, this means body shape and how the parts fit together. The draft breeds are what are known as "slow twitch", this means that messages along the nerves to the brain take longer to get the message across. Sometimes they do not respond at first to external stimuli. All in all I would rather have any draft breed then the other breeds.