Sometimes all it takes for a would-be thief to skip your house is the presence of a massive guard dog. They’re big, they’re intimidating, and when they’re pushed to their limits, they use all their muscle to keep their owners safe. The dogs on this list are as big as they come, but when it comes to their families and the proper training, they’re as sweet as the littlest lap dog. What did you think? Please leave a comment in the section below and remember to share the video and sign up for our free newsletter!