when someone bullshits me (or at least tries to), and then asks me what I think, I often reply with... 'What do I think? I think you need to go take a shit...It's coming out of your mouth instead of your asshole'.
Sometimes it is better to be quiet and thought a fool, rather then open your mouth and remove all doubt.
I have a dog that's very awkward and clumsy at times. I love her to death, but I love to make her feel awkward. Anyways So whenever like a close friend or family member does something stupid or awkward, I say "Great, you pulled a Lucy."