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This is Frank. He owns a book store in Salem, Massachusetts.
Mostly used books, stacked from floor to ceiling. He's been doing this for the last 37 years.

As you come in the book store and look to your right, you can see a gap in a wall of books.
And in that gap there's Frank.

I asked -
Is this your teller window !?
Yup. Window of opportunity, he replied.

I'll be back Frank.