Appeal to your high-energy doggo with some of these exciting activities!
Remember how we mentioned that your Majorca Mastiff is a total expert (by nature) at being a protective guard dog? That's just part of who they are. Furthering their protective instincts can only help them improve their guard dog skills and help you learn to best control them (to avoid any slips into aggressive territory). You want to strike a balance between the protective and highly trained watchdog and aggressive pup who doesn't know how to tone down their protective tendencies. Training your Majorca Mastiff to be a watchdog typically involves training your pup to only bark when necessary and even helping them learn how to patrol the premises while alerting you, the owner, to danger.
That being said, this doesn't necessarily mean you need to train your dog to attack, bite, or lunge — you simply need to help your dog understand the difference between protective patrolling and aggressive alerting.
While this might seem tricky to handle on your own, remember, it's okay to get help from a trainer!