The… we… I did an experiment with… with a lady, Leslie Barnett, and we put the plates in the incubator sometime in the afternoon and we came back in the evening to look at them and we… if the… if the result was what we expected, namely that it was called a triplet code, never mind exactly what that is, then there would be some plaques on one of these plates, you see. And we took out that plate and it got plaques on it, so the first thing we did, make… check we'd got the plates… hadn’t got the plates mixed up by checking all the labels and then I did say to Leslie Barnett, ‘You realise you and I are the only people in the world who know that it’s a triplet code’, so we did actually use that phrase at the time.