Finally, as many commentators (not me) foresaw, the polls show that Scotland's Independence vote is in the lead.
If the UK breaks up - indeed whether it does or not - we are going to have to have a look at how we got into this mess.
Scotland voted for an SNP majority, and the SNP leader, Alex Salmond, came down to London and demanded an Independence referendum. He must have been staggered when he got it. Any normal Prime Minister would have said 'OK, you set out how it would be like, Independence, and we'll set out how we think it would be like. After that we'll start talking about referenda.'
But Cameron, who wants to be seen as a modern, all-inclusive sort of moderator, rather than leader, rolled over immediately.
Then the question. Again, any normal leader would have devised it as 'Would you like Version A (complete independence) or Version B (some sort of independence light)?'. But Salmond saw the danger of this and insisted on a straight 'in or out'. Again Cameron rolled over.
The problem is that this is the man we've got negotiating for us over whether we stay in Europe. I suppose it's possible that Cameron wants Scotland to leave (his Labour opponents would lose a lot of MPs at Westminster), and that he wants Britain to leave Europe. But I don't think so. I think he's just a weak negotiator.
This is quite worrying.