Took us forever to learn down too. "put a treat between their front legs & most dogs will instinctively lay down." BS!!! Certainly not when they can still reach it standing up!!! We parked it in the living room with a big bag of treats over a long weekend & decided we were either going to have a porker or a dog that learned to lay down! She's got it now but I'm not entirely sure she really knows the difference between sit & lie down, she just circles through doing everything she knows until she gets the treat! It's a real good thing she's got her looks! 
