I think they're ridiculous if they leave, but they act like they're not even a part of Europe let alone the EU, so I wouldn't really be surprised if they manage to pull it off. It would open the door to the

Scotland exit again, though, which would be a good thing.

hmm yeah.. but say that they do leave.. will that create a domino-effect so that Europe falls apart?

Nah. Main problem is that it'd wind up lessening the euro value :|