Some situations where the bitcoin status of being a private property or not could arise:
> A mistakenly sends bitcoins to B, and A finds out who B is.
> A mistakenly shows his private keys to B (by just saying it), and A finds out who B is.
> B executes a replay attack on A.
> B, by an practical impossible luck, creates a private key that had founds that belonged to A already.
> B sends money to A (and A sends "something" or some information to B). Then, we don't know why, everyone decides to change their Bitcoin rules and the result is that A can't get to spend his money in the new version.
I started an article (here) trying to defend the idea that bitcoin is not private property, therefore all of the examples above couldn't be classified as theft or robbery (of private property).
What do you think?