It doesn't have to be a massive revolution, a "palace revolt" (or some combination thereof) would also do - not sure how likely it is, but I was in Romania when

It doesn't have to be a massive revolution, a "palace revolt" (or some combination thereof) would also do - not sure how likely it is, but I was in Romania when Ceausescu was toppled, and his regime also didn't look like it would be possible to end it in a week (https://en.wikipedia.org/wiki/Romanian_Revolution https://en.wikipedia.org/wiki/Romanian_Revolution). Ok, there were up to 1300 victims (estimates vary), and it was the only one of the regime changes in Eastern Europe in 1989 that actually led to violence, but compared to what we are seeing in other countries around the world, Romania still got off relatively easy...