How can my mama keep my kitty housemate from ambushing me?

Dear Most Esteemed and Knowledgeable Kitties:
I am 13+ years old (I don’t know exactly). My name used to be Eubank before my new mum brought me home from a cat shelter where I was ugly and unwanted, now I am loved and wanted but still ugly! My mummy has written to you before, but I [...]