Where’s a tear gas canister when you need one?

Occupy Wall street demonstrators protest on the streets of lower Manhattan near the New York Stock Exchange during what organizers called a “day of action” in New York, November 17, 2011. About 500 Occupy Wall Street protesters marched from a New York park on Thursday to the stock exchange for a protest that the movement against economic inequality hoped would attract tens of thousands of people. (REUTERS/Mike Segar)