For a man who claimed he wanted Scotland to stay in the Union Cameron is shamelessly trying to scare English voters about some sort of Scottish threat.
But voters are not as silly as Cameron and his advisers believe.
The advice to voters has to be ignore the spin, follow your heart or political leanings and forget about possible coalitions until after May7; if any party gets a majority no coalition will be necessary.
Remember that the first coalition in the UK for many a year was the Tory led Liberal Democrat coalition of 2010 widely called the Condems for obvious reasons; those parties did not care about the voters when they joined forces and let down voters.
The Tories will do a deal with Ukip or the Lib Dems or almost any party again to get re-elected but they are not telling you that, are they?
Scary Tory Ukip coalition possibilty