It seems quite a few people here have JR's. I have a 7 month old monster (he's gorgeous really) called Sprocket. Sprocket has been going to puppy classes since 12 weeks and has changed from sitting shivering with fright, through disrupting the entire class to being comedy participant to ocasionally obedient (not often enough, but hey, it's progress of sorts!) The only problem I seem to be having is that he seems to have forgotten the basic "sit" which is so weird. He's quite happy to go down and stops etc but rarely sits. Should I try again and again? Any hints?