I was going to copy and paste that picture showing those precious ears. Sam is adorable, and you are an angel for having him to stay with you. It seems at his young age, that some of those aggressive tendencies towards other dogs can be put under control quickly. How wonderful it is that your sister is available to "dog sit" during the day and work on some training too!!!

Hugs to you, and Sam, and of course, Penny Lane and Leo too! They are very sweet to allow a new"person" in their house!!!

Logan