The Power of Words

When traveling with The Doctor, there are a few, very important things to remember:

1. As long as you're with The Doctor, you're safe.
2. Nothing can get through the TARDIS doors.
3. The Doctor always knows what he's doing.
4. There is always a scientific explanation.

Of course, the most important thing to remember, Rule One, is The Doctor lies. So all of these facts could be lies. Or maybe this statement is the lie. But why start the story at the beginning when you can start at the end? Or maybe the end is the beginning?