Production Disruption

As 1860 drew to a close, the United States was again preparing to go to war, this time with itself. Ulysses S Grant foresaw that a Civil War would result in a blockade of Southern ports, and that, in turn, would result in the South's losing its predominant position as the worlds foremost exporter of cotton.

"This disturbance will give such an impetus to the production of thier staple, cotton, in other parts of the world that they can never recover the control of the market again for that commodity." US Grant.
If for whatever reason you stop production, someone else will fill the void, and you will never be able to fully recover your lost market share.

The same goes for athletics. Once you lose your production, your place in the game, it will be hard fought to regain. So be careful that you strategically take those days off when others are working.