What would a Greek exit mean?

Another quote from Greekonomics by Vicky Pryce.

She paints a vivid picture of what a Greek exit from the euro, the re-creation of the drachma as an instrument of govt policy, would actually mean:

"A serious possibility of exit -- and how could it be kept completely secret? -- would lead to a full-scale run on the banks. Clearly any country wishing to exit the eurozone would have to nationalize or take temporary control of the banks and reintroduce controls on the movement of capital. The government would also need to reintroduce stringent border controls to stop people leaving the country with euro notes and coins in their luggage or in their underwear! In countries like Greece, where taking to the streets is part of the political way of life, the population would probably react by attempting to physically remove their savings, breaking into the banks -- and then for good measure attacking Parliament. So in Greece a euro exit could easily end with troops on the streets and martial law -- just the circumstances that joining the EU was meant to prevent."

The upshot for her? those dang Germans need to pitch in, helping out their southern tier brethren.

"Germany will have to accept that it will need to pay a large share of what is required tokeep the system going, in a way repaying some of the economic benefits it has reaped from being in the euro -- not only in terms of trade going in its direction from the periphery countries for much of the period but also from a euro that is much weaker and hence more competitive than it would have been were those problematic periphery countries not members of the eurozone."