Murder, She Wrote, Season 1

Ralph:
Yes, ma'am, I've been hoboing for about as long as I can remember but you must understand I am not a bum. I work for what I get. [Picks up a book] Hey, I read this story. Good book. [Sees the author's photo] You wrote this!

Jessica:
I did.

Ralph:
Mrs. Fletcher, you astound me.

Jessica:
Oh, Ralph. You're not astounded at all. As a matter of fact, you're full of clam dip. Now, sit down and eat.

Ralph:
Ma'am, you misjudge me.

Jessica:
No, sir, you misjudge me. That book is a pre-publication copy. It hasn't even been released yet. Secondly, your clothes may be faded but they are exquisitely tailored. And third, the term is "bo" and not "hoboing". And finally, on your wrist is an imprint where a watch used to be.