If you want to stop listening for an event after it triggered, you can unregister the anonymous listener in itself.
Just avoid writing function enclosures and extend the scope of the complete function's passed arguments so it can access them.
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.