I did (I also changed schools), basically it meant I was in grad school about a 1-2 longer than I would have been otherwise. I only published one experimental paper, but I guess you could say it makes my publication list a little unusual (since then I've done some work in biotech and added a few more papers that don't really fit the field of my PhD). I had already taken a pretty wide range of the grad classes available so it didn't require any additional course work. It wasn't a big deal, I just changed schools (and obviously advisors). The main thing is the time that, at least from a certain perspective, was wasted.