It's a sign of old age. And he is beginning to lose control of his bodily functions. My dog was the same way when he hit 15.
You might want to consider either medication or putting him out of his misery. I wouldn't suggest putting him down unless he is in pain...
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.