The Boo Guy has a nice critique of a new trend called Radical Honesty. I hadn't heard about this, but it sounds insane. Key paragraph:
I frequently combat the forces of "being real" that pervade 21st Century Christian thought, basically the same idea. The problem is, when you let your "real" thoughts out, they are usually the lesser half of who you'd like to be, the negative thoughts and doubts. I have good and bad thoughts about almost everyone and everything at every moment. I choose to verbalize and act on the ones that take steps toward me becoming who I'd like to become, instead of the ones that will only cause trouble or make me a weak and needy person. "Radical honesty" is bull.
Even if you think lying is always wrong, does it follow that you always ought to say everything that comes to mind? If you consider that some actions amount to lying because you refuse to say something, then I wonder if it does. I already think there are cases when lying is ok. I think this example helps solidify that, because not engaging in radical honesty does amount to lying of a sort, and it would be pretty bad not to lie in those ways.