Re: Clark tossing people into things: I think we just have to assume that physics in the SV verse just don't work the way they do in our world, because clearly we aren't supposed to think Clark is using excessive force since he does it in practically every episode and the villains miraculously never die from it, unless they are conveniently immortal and will come immediately back to life.

But yeah, I agree that they're moving Lex along the continuum toward first-degree murder, even if he isn't there yet.