We haven't failed yet, but we are not here to judge you or your dog on obedience skills. The studio is a strange place for a dog, and it might take them a little time to get used to it. Just stay calm and let the photographer do his thing. He does know what he is doing. In the studio it can help if your dog knows a few basic commands (sit, stay, etc), may be take a look at the information here for some help. But it is amazing what a few practice runs with some nice rewards can achieve in a short space of time. But, if we find we are still having problems then we can use a lead if necessary, and this can be removed in post production. If you have a really active dog you might want to think about a location shoot. Some action photography would really capture the spirit of your active dog.