I never did this with Aspen, and he turned out fine. Not to brag *hehe* but when I got him at 8 weeks old, he never had an accident in the house nor was he ever a destructive chewer. If I wanted to, but I never did, I could leave him in the house by himself for about 30 minutes and I would come back and find everything in one piece. When he wanted to pee or poo he went out to the grass area by himself. I never had to potty train him. I did buy a crate for him when he was a puppy, but I never used it because I didn't need it. I guess my question is, what is the crate actually for?