Is my observation correct:

```
public intercafe IMyInterface { bool IsOK {get;set;} }

// If I use stub this always return true:
var stub = MockRepository.GenerateStub<IMyInterface>();
stub.IsOK = true;

// But if I use MOCK this always return false -NOT True
var mock= MockRepository.GenerateMock<IMyInterface>();
mock.IsOK = true;

```

If I am right; why is the reason?