Well the Gorse Fox should have kept quiet.
He returned to the paint sprayer for one final coat. He had not realised he was almost at the end of the paint reservoir and the spray gun started to splutter, or to flood the surface. As he was spraying white onto white, this was not immediately obvious. He now has had to call it a day to allow the paint to dry overnight - then he can return to it and sand the various splutter-marks and slight runs that have formed.
On a positive note, the spray gun cleans up very easily (though that could be because the Gorse Fox is using water based paints).