Lassie was a very dear and loyal friend, we had her since she was 6 weeks old and she passed when she was 10 years due to liver failure. It happened so fast and it was the most heart breaking decision we ever had to make. It was a big shock to us all, we miss her very very much as does her little sister Rosie, she still pines for her. Lassie will always be a part of our lives..