I know someone who is a trucker. He now has his own Semi-truck and can have a dog with him for companionship. He was asking my opinion on what breeds would be best. He said he can stop when ever the dog needs to and exercise the dog as much as a person living in a home. Not sure how that is possible but I am not a trucker. Anyway after some thought, I said a Boston Terrier (I like them lol ). I figured small and very people oriented, they are also pretty good watch dogs. He asked about a JRT and I thought they were to high energy. I also said that any smaller breed that is older (from a rescue) might have lower energy and fit in his life style well. What do you guys think?