Jack-Allen Walker on Instagram: "The English Mastiff is one of the most impressive breeds on the planet—massive, gentle, powerful, and deeply loyal. 🐾 But behind that giant frame is a dog that needs structure, calm leadership, and clear boundaries more than most people realize. Mastiffs aren’t “just big dogs.” They’re guardians by instinct, observers by nature, and emotional sponges who mirror the energy in their environment. Their size makes people forget one crucial truth: a giant breed with