SPOILER WARNING! Article and subsequent comments will contain spoilers.
CHUD.com interviews Jenna Fischer about Blades of Glory, but she talks a little about The Office, too:
You had a weird break up scene on The Office this season with your boyfriend. It was very unnerving towards the end.
Yeah, with David Denman. David is one of my closer friends from the show; he and his wife and me and my husband, we hang out a lot. To see him turn like that, for me it was even more shocking because I know him as a big teddy bear. He played it so well and I think that cliffhanger of “I’m gonna kill Jim Halpert” is one of the best last lines of our episodes ever.
Link: Interview: Jenna Fischer (Blades of Glory)
Tipster: Ed Truck