The Law of Two Feet

I came across an interesting concept recently in an article by Harrison Owen, a member of an organization advocating Open Spaces Technology, a model for organizing meetings that's based around open participation : the Law of Two Feet. Brilliantly simple, it says any time you're in a meeting where you're not contributing nor adding value--you are encouraged to use your two feet and find a place where you can. In other words, if it's not meaningful, and you're not doing your part to make it meaningful, move on.
Source : Darwin meets Dilbert: Applying the Law of Two Feet to your next meeting