How should I refactor this design?

Just use a common interface, and implement different behaviors in concrete objects.

This is an interesting problem. I'd like to reflect on the goal of this design, so you can correct me if I am mistaken.

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.