A true story from Wednesday:
I was leaving a bank in York, Maine, that I'd been in for reasons we won't get into because they make me look stupid, when a customer service person from said bank came running out after me and called me by my (real) first name.
I turned around. She held a dollar out to me. "I have no idea who dropped this in the bank," she said (though she knew for sure it wasn't me). "Here. It's another dollar for tolls."
And that is how I know I'm in rural New England and not, say, any big city or the area around Washington, D.C.