One Sunday a pastor found several letters awaiting him.
He opened one and found it contained the single word, “Fool. “
Quietly and with becoming seriousness he shared the letter with the congregation and announced, “I have known many instances of a person writing a letter and forgetting to sign his name, but this is the only instance I have ever known of someone signing his name and forgetting to write the letter. “
This joke is included in the Black Book of Jokes. You can order it from here.