Hi everyone, I'm very grateful for this dog forum. Our lack of knowledge of dogs and their psychology and training has made our past history with pets not very good. I'd like to do it right this time since we now have been given a dog (puppy?) whose name is Halo. I've been reading, watching videos, and have downloaded this site's dog obedience class. I know the importance of the walk and exercise of dogs, but am limited in walking very far. Fortunately, I am able to ride my bicycle and enjoy doing this. Almost from the beginning I would take Halo on my bike rides down our 1/2 mile road and back. She always ran and trotted right alongside me and seemed to love it. I thought that she was getting good exercise and we were able to spend this time together. The problem now is that she pulls and drags on her leash when we begin our rides. I've tried encouraging her to continue with me but it's really getting difficult, so something's wrong. I don't know what, though. I've wondered if maybe the run is too strenuous for her, she's a mixed breed, part beagle but a smaller size, but when we get to the end of the road and turn back she runs so fast that I have to work to keep up with her. Am I stressing her out? Should I stop our rides completely? What's going on? Can anyone help me with this? Thanks!