Sometimes, in the effort to save $1, you lose $10—like when you buy an older bicycle, but it turns out, with all the work needing to be done to it, you should have just bought a newer one instead. Life's like that sometimes, and if you're trying to dig up ways that employees are screwing you to save money, you'd better be darned sure you're not actually screwing them, or else that might cost you—big time. When the administration tried to tell this teacher that she was having her hours docked fo…