I don't want to count my chickens... but I think Diez is a wee bit better.
He actually wagged his tail a couple of times today (not at me tho...but at JB and KDF when they visited him on his death-bed. He's sick of the sight of me smothering him so I get no tail-wagging) He's also been walking (limping) around a bit more tonight. I had to pretty much hand feed him dinner but he looks better than he did this time last night.
Hang in there old buddy.