It generally pisses me off when a common phrase gets made famous by some TV character or something. It's kind of like a band that you really liked, and then they sold out and hit the radio waves, and then everyone thought that you're just jumping on the bandwagon and reveling in the fad.
But this is an old reference that people have been using since the world wars. The concept of "Switzerland" as a neutral entity is a classic. And it PERSONALLY pisses me off because I used to use it on occasion, particularly because I tended to be a part of several social circles that didn't always get along or mesh. And so when I used that term the other day and someone laughed at me, and I said, "What?" they said, "I just didn't know you were a Twilight fan, that's all." I almost ripped her friggin head off right there. Instead, I cussed her out (no quotations needed) and told her plainly that Twilight didn't invent the term, and that if she thought that Meyer did, then clearly she knew nothing about history or common idioms.*
Sorry, I just felt the urge to express my annoyance that a phrase I used to use has suddenly become a "Twilight" reference. It reminds me of when Family Guy makes a popculture reference, but people miss the reference and think it's a FG Original and start saying, "Hey, that's the thing from Family Guy"-- NO IT &%$#ING ISN'T, IDIOT!
*Please be aware that my friends and I cuss each other out and speak very frankly with each other often, and no one gets offended. It's just how we communicate.