Joss Whedon said this quote

Seven years, Dawn. Working with the Slayer. Seeing my friends get more and more powerful... a witch. A demon. Hell, I could fit Oz in my shaving kit, but come a full moon, he had a wolfy mojo not to be messed with. Powerful, all of them. And I'm the guy who fixes the windows. They'll never know how tough it is, Dawnie, to be the one who isn't Chosen, to live so near the spotlight and never step in it. But I know. I see more than anybody realizes because nobody's watching me. I saw you last night, and I see you working here today. You're not special; you're extraordinary.