When I introduce this, my criterion is that whatever pet projects people work on during work hours should make the lives of people at the company better, if suc

When I introduce this, my criterion is that whatever pet projects people work on during work hours should make the lives of people at the company better, if successful. Beyond that, I don't care if it's cancer research, self-driving bicycles, an email client someone else at the company uses, or a script to automate some commonly performed actual work task.