I recently left a postdoc position (UK) due to the grant coming to a close, and I have moved on to a non-academic post at the same university. I had been looking to move out of academia for a while so this move was completely planned (and wanted!). In the last couple of months of my postdoc my PI decided he wanted me to write up a paper based on the (very little and uninteresting) data that had come out of part of the project I had been working on, but it took so long to decide what would actually go into the paper, that I only had about 2 weeks before finishing my post to write up as much as I could (which wasn't much since I also had to train another postdoc to take over my other project, and a bunch of students!)
I am now only 3 days into my new role which is already much busier than anticipated, and my PI is already chasing me for a plan to finish the manuscript. I am not able to do this during work hours, and also I have no interest in publishing the work (I believe it amounts to pilot data at best)! However I also don't want to burn any bridges with my old PI by ignoring his communication, or get a bad reputation since I still work at the same institution.
Has anyone else been in this position? And is there a polite way of saying that any further work I do will have to be on my schedule, or perhaps invite him to pay me for any more work I do for him? Or should I just suck it up and get it done in my spare time?!