We have, slowly and bitterly, learn the lesson. When the crowds gather in the square, and kick out the corrupt, extravagant bully who has wrecked their lives and stolen their resources, that is a gain. But what follows – as in Egypt – will not be as pleasant and as simple as we’d hoped. So many countries have been crudely botched together, papering over ethnic/tribal/religious/political cracks. When you take the power man away, there’s a risk it can all fall apart. That’s not an argument for leaving him in power, but it does tone down some of the excitement, as we watch him being booted out.