As someone that was made to sign a confidentiality agreement under duress and unfair pressure months after joining the company, with stipulations that basically

As someone that was made to sign a confidentiality agreement under duress and unfair pressure months after joining the company, with stipulations that basically say ANY work I do, regardless of industry or during the weekend, belong to the company. Even after I no longer work there up to one year, and ONLY if I bother to sign the attached clause that says I no longer work there. I'm so glad that tomorrow I'll be handing in my two weeks notice especially at a critical time for the company. I'm also the most senior developer that everyone else comes to with questions regarding how the system works and how it can be improved. The original developers left for similar reasons. What I'm trying to say is, if you think, as a business owner or employer that you can act against the best interests of your employees then you'll end up paying dearly for it one way or another.