OK, so this is driving me nuts. I keep hearing people say "I took an arrow to the knee" is supposedly "nordic slang" for getting married. Then I hear that is a bunch of bull, and its a joke by bethesda since there are no greaves in the game.
I found a couple blogs and quotes from interviews, but does anyone have a straight answer?
http://message.snopes.com/showthread.php?t=85479
http://sfwflot.tumblr.com/post/49846339760/arrow-to-the-knee-as-old-norse-slang-a-tribute-to
""It's a great line," Howard continued, laughing. "[Senior Bethesda game designer] Emil Pagliarulo wrote it.
"This was late in the project. We wanted to have the guards to have more personality. They're usually just grunting, telling you what to do. So we had Emil go in and write a lot more stuff and have them reflect you. So the guards say the most about you and what you've done: 'Oh, I like that armor.' 'I hear you're doing this.' And then, there is a suite of, 'Why am I no longer a guard? These guys are adventuring. I'm stuck here with dragons.' That was just one of the lines."
Pagliarulo wasn't available to tell us just why he wrote that line, but at least we now know why it's in there. It's there for you, gamers. The guards want you to know that you matter."