Another problem: Upstarts need every customer they can get, and asking too many questions might spoil a potential sale.

FORBES: Small Biz Bum Alert

Once, when I was asking too many unanswerable questions in the Local History section of the Niagara Falls Public Library, librarian Maureen Fennie held up a hand to stop me.

NPR: Excerpt: 'Inventing Niagara'