I completely disagree with the one bite and you're out people. If a dog bites, the owner should be put down!! First, you should have control of your dog at all times, if you can't, you shouldn't have one. Second, you should know your dog and the situations that might upset them which could cause a bite. Don't put them in that situation. Therefore your dog shouldn't have a chance to bite. I can't understand these people that complain that their dog tears up their house. The question is, what's your dog doing unsupervised? If they have separation anxiety or other destructive behaviors, they shouldn't have the run of the house. Put them in a crate when you leave. There is typically a reason for why a dog acts a particular way, normally it's the owner and their inability to take an alpha role over their dog. Dogs don't want to act badly, they want to please their owners, that is unless they don't respect their owner.