I don't know if the dog necessarily thinks it's the boss of you if it's walking in front. It knows you're not a dog. However, you will have much better control if your dog walks by your side. Also, people are usually warned to watch out for dogs walking in front, because it indicates their owners don't have control. So I guess maybe it depends on what impression you want to give. Do you want to look cool and in control, or do you want people to leave you alone with your scary, loose canon dog?
