Since we got Brucie, our winter walking has been drastically reduced, so I decided to try them on the treadmill...And I just have to brag b/c they picked it up right away. Jersey goes first, and as soon as I get her speed up to running, her tail starts to wag. Then goes Brucie, and he trots along happily, knowing a cookie is on the way. Marlee goes last, and while she enjoys it, she makes it clear that exercise is not on the top of her list and occasionly sits and rides to the back, always looking at me with her big grin! Anyone one else treadmillin' it this winter?