What is an example of symbolism in the novel, The Aftermath?

Freda’s chamber pot is a symbol of territorialism. Early on in the novel, she tries to torment Edmund by peeing in her chamber pot and delivering it to him in his (her old) room. She is angry that the Morgan family is now occupying her house (like the British are occupying Hamburg), and this action represents her resentment and her refusal to accept this. Like a dog, she is marking her territory with her urine.