This MUST have come up before, but...
In Blink, the Doctor says regarding the Weeping Angels: "...you can't kill a stone." But I've been wondering. You can smash stones up into tiny little bits. So why can't someone go up to a Weeping Angel with a sledge hammer and just smash the crap out of it? This must have been brought up before, so what am I missing?
In all the history of the world, a riot has NEVER broken out at a Sci-Fi convention.
"It's a fucking TV show!" - Gary Lockwood