In any relationship, if you're not appreciated for your efforts, there's no better time to walk away than now. Of course, when it comes to employment, there are always considerations to be made for maintaining a source of income, but if an opportunity has presented itself for something better, you really should just go for it. That's what this worker decided to do when they had had enough of their terrible job. They received an offer for a big increase in salary and more flexible working condit…