David Maddox: Budget - Harvie's twists and turns

Green leader Patrick Harvie has left the chamber in a rage and has been talking to another hack about the perfidious SNP. Apparently he thinks that with £22 million next year and a long term commitment to his free insulation scheme he is being fobbed off.
Bruce Crawford, the SNP's business manager, has just told my colleague Hamish Macdonell that they don't know if they have a deal yet. The smiles are flickering at the edges and giving way to worried expressions.
Green spin doctor James Mackenzie looks like he has never known stress like this in his life.
But the feeling among the parliamentary hacks is that for having only two MSPs the Greens have been offered a fantastic deal and it would be suicidal for them to vote this budget down.
The bottom line, though, is that there is no deal yet and it looks like Mr Harvie may throw a fit and take Holyrood into the unchartered territories of a failed budget.
As I write, he's walked back in.... what is he going to say?