That happens often and then I just put it aside. Just put that aside. No, that happens a lot. And the interesting thing is, when you put it away and don't try to solve it, because it should have been just happening, then you pick it up again and you look at it and you say, 'Oh for Christ sake, what was the problem? I don't see any problem, it just needs a little yellow'. You know? Then I'm putting it together. Simple as that. And you'll be surprised, often you come back on a painting and you see. How come I missed that? How come I didn't know what colour I need? It happened some years ago with a fairly large painting at the County Museum, the year-end show. And I had a fairly large painting there and a portion of it was a problem. And then I walked into the museum of painting and I come up to this painting that I have not seen for 2, 3months, you know. And I looked at it, I said, oh my God, I know what's the problem, I just want to take this damn thing off the wall, take it home and make the change. But you see, it took that time to be away from it, and then when you saw it, fresh, boom, there it was. It was no problem. You know exactly what was wrong with the continuity of the painting and all you wanted to do is just to get it home and open it up and make the change. But that's, that's painting, you know? That's just part of it, part of it.