fullmetalrose wrote:As for the pipe incident, the wasp did it when he was in the form of a human...hence the human shadow, or so I assume!
I don't really agree with the Doctor's perception of time, i believe that you cant change the future by going into the past and doing somthing for a simple reason, if you were going to the past did something and the future didn't happen, you could potentially not happen which stops you from changing the past and changing the future, Confused? Let me explain another way.
You can not go into the past and kill your mother before she gives birth to you as you wouldn't be born to kill her in the first place, time can not be so easily displaced and corrupted/broken so it can be assumed that any actions/lack of actions you take while traveling in the past are relevant to the existence of the future, this leads to the problem of free will, humans as a race do not like to feel like they are not in control of their lives if they believed that what they did was unchangeable, also that leads to a conclusion that a human no matter how many attempts will always make the same choices and live by the same consistence in a single dimension if given the ability to relive an event.
If you understand this, the actions of the doctor make sense, the many episodes of the doctor in the future earth wouldn't happen if he didn't stop the suntarans (sp?) from turning it into a clone world, as this happened in eps before the suntaran ep this season, it is not by chance but by destiny that the doctor saved the earth.
As for the wasp lead pipe thing watch it again, Shadow of man with lead pipe, Turns into wasp form, shadow is wasps now holding said pipe, Hits dude over head with pipe roughly 1:24 into the episode.
*edit*
Screencap of stupid idea.

Moozman