My all-time favorite:
"I forgive you"... when you haven't done anything wrong.
BUT, they disagree with you and OBVIOUSLY, ANYONE who dares disagree with their opinion must be committing some mortal, 7th Circle of Hell-bound sin.
I just LOVE hearing this from other Christians. It's simply a manipulation technique not-so-cleverly disguised behind one of the most major Jesus Jukes ever. I especially loved hearing this from a guy in prison with LWOP (life without parole) who wrote, "Kim, how is it that you've let Satan fill your heart?" But, never fear because, he concluded, "I forgive you anyway." AAAAAAARRRRRGGGGGHHHH. (What great sin was I committing? I refused to send him money when he asked repeatedly, even including lists of things he wanted that he generously said I could buy for him if I didn't just want to send cash.)
Now I'm not saying I'm without sin, of course!! But just because I disagree doesn't always mean I'm sinning, either. Hearing this little phrase (and other snarky Christian euphemisms) makes me want to go out and throw and burn things...