The adage is based on the fact that you can't "undo" a cut too short. If you need a 6' board, and cut it to 5'10", you've probably just wasted a perfectly good

The adage is based on the fact that you can't "undo" a cut too short. If you need a 6' board, and cut it to 5'10", you've probably just wasted a perfectly good piece of lumber.