Conan O'Brien's 'Legally Prohibited from Being Funny on Television' Tour might be a once-in-a-lifetime event, but that doesn't mean it isn't bound by the laws of concert tours.

Those are the unspoken laws of live entertainment physics that affect every staged entertainment venue across the globe. And just like actual physics, they are cruel mistresses with no pity for people who dare to challenge them or go outside their boundaries of motion, inertia and box office receipts.