I have always had large dogs - two German shepherds raised from puppies in addition to training Guide Dogs for the Blind. This included a year of intensive training for each dog; I received them at 8 weeks old and then brought them up to be excellent canine citizens. I've also fostered 3 nursing mothers with litters ranging from 3 to 10 pups. I also have dog sitting experience ranging from miniature schnauzers to mastiffs.