I knew this time would come but i always thought it would come on more slowly, than it has.When he was two years old he damaged the ligaments in his shoulder when running in a forest and coming to a stop "In a pile of wood" very quickly, it took a month before he stopped limping So roll on another 8 yrs of year round wild camping, sometimes (according to viewranger and Social hiking) he did 200 too 300 thousand feet of ascent a yr.Which has i guess has taken its toll About 2 months ago he left the back door of our house landed briefly on the decking,3 steps down then clearing the next 5 steps he landed with a bump on the lawn, but that cat didn't half move quickly :) We've had a few trips to the vets, they are certain its arthritis and he's now on full dose of Metacam a day and 200g of Tramadol and still has a bad limp, but with these pills he can now manage a 30-40 minute walk with Jill in the mornings ...