I thought that one of Greece's big problems is that there's already an ongoing "I won't pay" (taxes) ... um, movement.
"ATHENS - In the wealthy, northern suburbs of this city,
where summer temperatures often hit the high 90s, just
324 residents checked the box on their tax returns
admitting that they owned pools.
So tax investigators studied satellite photos of the
area - a sprawling collection of expensive villas tucked
behind tall gates - and came back with a decidedly
different number: 16,974 pools."
[...] http://www.nytimes.com/2010/05/02/world/europe/02evasion.html