Dear Mouse,
I don’t know how else to address you because I don’t know much about you. The only thing I know is that, much to my dismay, you have found your way into my apartment without invitation. You are causing me undue panic every time I hear the slightest twitch or shudder. I will have you know that your unwelcome intrusion will not be tolerated any longer. I send this letter with a fair warning that if you do not leave us alone, you will soon find yourself between a small rectangular piece of wood and a spring-loaded metal bar. There will be no escape after that. By the way, what’s you favorite food?
Yours Truly,
Beth