Bizzeh writes "Today my boss came to me with what he thought to be a valid point and analogy. A builder builds a wall. A week later, bricks begin to fall out of the bottom, but he continues to build the wall higher. In most cases, he would have to replace those lower bricks at his own expense and on his own time. Comparatively: A software developer writes a piece of software. When bugs are discovered, the developer is paid to fix them by the employer and on the employer's time. I didn't know how to refute the analogy at the time, but it did make me think: why are bugs in software treated differently in this way?"