he's the worste liar i never saw...i don't understand that the brothers can't saw that...he did that so badly..turning face...stammer...i believe that the brothers didn't really care about him this year and that why they didn't saw that...you see things like that when you're friend with someone since 3 years and you know that he's in trouble...

I think they know somethings up, this question reminds me of this scene:

Dean: What's the plan?
Castiel: We'll... tell the officer that he witnessed an Angel of the Lord, and the officer will tell us where the angel is.
Dean: You're serious? You're gonna walk in there and tell him the truth?
Cas: Why not?
Dean: Because we're humans. And when humans want something really bad we lie.
Cas: Why?
Dean: Because... that's how you become president.

if it's that the lesson that humans gave to castiel..it was better to him to stay in heaven...lol...but really for me, it's a bad liar...sam and dean are better in this game maybe he learned that from them but he's not a good student

The apple doesn't fall far from the tree... O=3

(for the Christians, I'm talking about the SPN God :P)

i think he's not a very good liar but that's part of what we love about him :)

LMAO not at all! Have you seen the man try to lie? It's so obvious and I agree with pizzapi, so endearing <3