How come we're not in the Euro but still have to bail out Greece?

I'm more than a little worried by this report in the Telegraph. While the UK has been distracted by elections and the behind closed door negotiations France and Germany have been doing some behind closed doors deals of their own which has resulted in a bail-out deal for Greece which not everyone is happy with.

I have never thought that joining the Euro was a good idea and felt vindicated by the fact that the Eurozone would now need to throw billions at the Greek economy. I was rather brought down to earth when I read that despite staying out of the Euro we would have to contribute to the Greek bail-out too.

There is nothing that we can do about this because of conditions imposed upon us by the Lisbon Treaty. Remember that one? The one that was forced upon us without a referendum by Labour.

Bearing in mind our own perilous financial status I'm not too keen at throwing possibly billions of pounds that we don't have into the bottomless pit of Greek national debt.