Suppose you have a nine out of nine chance to be hit in the head by a flying hippo today, is it possible that you won't? I think it is.
A thought experiment: You are taking a fill-in-the-blank math test, however, you have no idea what the problem is saying, or what the solution could be...So you guess. In theory, you chances of getting the right answer is one out of infinite. However, as practice has shown, people do in fact guess right ocassionally...How is this possible?
And since it is indeed possible, that one out of infinite is not in fact zero, then perhaps it is also possible that .9 vinculum (sp?) is in fact, not 100%.