Everyone either literally throws the book or comes close when they read the Red Wedding. Personally, I came very close to literally throwing the book. I didn't, but I came very close. Also stopped reading for almost a week.
Can't WAIT for this scene in the TV series, though. It's going to be amazing.
But yeah, f*** the Freys, and f*** <man in pink cloak who shall remain nameless because it is highly probable Menji has not figured out who it is>. Hate them all. Catelyn was one of my favorite characters. (And Robb and co. were awesome, too, obviously, but GAWD I miss Catelyn.)