It's such a mix bag of feelings eh? On one hand, Smash here looks happy. He has no idea of his impending demise. A peaceful passing is the best anyone in this life can ever ask for. On the other hand... why can't they live forever :'(

If your rotty is happy running around young, and also happy sleeping all day old... that's the only thing we need to consider in the end. Sorry you have to go through the same fears as me!