As I sit here waiting for FrontPage to compile, I thought I'd share some of the things on our whiteboards:
QuiznosSoup soup1 = new QuiznosSoup();
Soup soup2 = (Soup) soup1; // throws exception
[This is because, according to a sign there, "It's not soup. It's Quizno's soup."]
There is also an induction proof for (n^x - 1) / (n - 1) = Sum(i = 0 to x - 1; n^i).
...and, some things that I can't tell you about because the bad people will come for me.