I forgot to clarify that once Jimmy could relax the leg - he was fine. Was romping around with Ben shortly afterward.
OK - will work on keeping all 4 feet on the ground - but that's easier said than done...LOL! No more "chase the water spray from the hose" - THAT game gets kind of scary anyway. He's an Aussie - he NEEDS to "chase". Fortunately, we live on a lake and he loves to swim :-)
Jack gets glucosamine anyway - so giving a chew to Jimmy is easy. Crossing my fingers that was a "once in a lifetime event" like my other dog - but we DO have a good Veterinary Orthopedic Surgeon in Kalamazoo if all else fails....