I work full time, and we've had shadow since she was 8 weeks old. She's kept in a puppy safe zone (the kitchen, everthing is locked away, nothing but her toys left out to chew,etc), and does just fine. I do come home every lunch time though to visit, and I only live 4mins away from where i work, so im pretty much home as soon as I finish work. She a great dog, I've had no trouble with her, she's obiedient, house trained, NOT destructive, shes great. I just make sure the time I spend with her is special, and for her. So she gets loads of play time and walks, everyday. Thats an important thing, I think if you are gona leave a dog all day, make sure they get plenty of exercise when u are with them. I dont like the idea of crating, but can understand why lots of people do it. Also If you haven't got a dog, and are thinking of getting one, I made sure that I was off work for a week when we got shadow, so she could settle in properly, I would have liked to have taken more time, but didn't have enough annual leave left.