Jonty and Danny

At doggy school this evening and realised I didn't have a photo for my blip so snapped Jonty and his mate Danny.
Danny is a 'Westie', a West Highland Terrier.
I feel that Jonty is starting to struggle at doggy school, finding it difficult to 'Go Down' or even sit at times and his rear left leg and hip trembles sometimes as if he has Parkinsons. He seems ok most of the time but he is reluctant to lie down especially.
We'll persevere with it and see how he goes over the coming months, I'm sure he still enjoys going, or is it just for the sausage treats!