Samuel, my 13 weeks old GSD pup has a habit of carrying his leash in his mouth when we take him on walks. I'm not sure if it's a dominance issue, trying to show us he's in charge of the walk or a security issue. It almost seems as if his end of the leash is like a security blanket for him. We do have a house in the neighborhood with a not so nice person that Sam seems to sense as whenever we near this persons house he backs away and tries pulling us the other way. What's up with his leash behavior?