(With apologies to Robert Nozick)
Let us begin at the beginning. We stipulate that you live in a house, and in your house is a television. You own this television free and clear. One day, you go away on vacation, and I (without your permission, of course) smash in your front window, take the television, and leave. I submit that this is a clear case of theft: I have stolen your television. Your television, which is unambiguously your property, has been ferreted away in the dark of night without your consent.
Now let’s mix things up a bit and see what shakes out.