The world is a small place, and certain industries are smaller than you think. You never know when you will run into someone that you have worked with before. So my suggestion is don’t burn bridges. I am always surprised by the number of people I run into that either I know from previous projects or where we have mutual acquaintances. And people have a long memory. If you were a positive or negative force, your reputation will be remembered. So it will help yourself in the long run if you keep all your options open.