L'esprit de l'escalier, thinking of something far too late. A rude conservative at a party decided I was a spokesman for Al Gore despite the fact that I have never seen his movie. One of the lines thrown at me was that it is colder now in Greenland than it was in the middle ages as proved by the fact that there is no sheep farming Greenland where there was in the middle ages. Alas, if I had just thought to search for "greenland agriculture" on the internet I would have found this YouTube video. Actually rather scenic with the berg floating in the fjord and the sheep running about and worth looking at even if you do not need to make someone stop talking at you about how global warming is a myth.