Flipping the Bit
What if you were on the Starship Enterprise and the warp coil was seconds away from an anti-matter explosion and all you needed to do was invert one IF statement to save the ship. Would you use TDD for that?: Yes.
more on blog.8thlight.com
The article embodies what I see as the biggest problem with Test Driven Development's evangelism: it's full of religious zeal, but short on real-world numbers.