My dog is probably about 4 or 5 years old and I just got him. He is a good dog and is pretty obedient. Every time I take him to the field to do T-drills, FTP, T, TT, anything of the sort he gets real timid as if I am about to beat him. If I give him a Back, Nick, Back he picks it up but when he returns with the bumper he slumbers down almost to the point where he is laying down on the ground instead of sitting nice and tall. Basically he has no excitement when doing the drills, any suggestions? I am not in control of the dogs training program we do the drills on a regular basis and the dog rarely ever receives pressure. How can I make it more exciting for him?