So I was going to respond to Amanda Vanstone  this week, highlighting the way she misconstrued most of my points from last week  in order to score a few cheap ones for herself, but then I remembered that British supermarket chain Tesco sells horse.               Horse!  There's been a small kerfuffle over the last week    in the UK after Irish food inspectors discovered that a sample of   supermarket chain Tesco's "beef" burgers contained 29 per cent Phar Lap.   Cue the inevitable "I could eat a horse" tabloid headlines and general   handwringing about unwittingly dining out on an animal most people   wouldn't like to dine out on.                                   Thing is though, horse is perfectly edible, and in places   like France and Japan it's on the menu. (Of course there it's labelled   "horse", not beef.) I've never eaten horse, although I probably would,   as I figure that if you're OK with eating one non-endangered an...