Lawrence Watt-Evans' "Why I Left Harry's All-Night Hamburgers" (short story, parallel universe, free): Got a traveling itch?
Story summary.A diner somewhere at the edge of a small town often receives some very weird crowd late night - travelers from other parallel universes. Their talk overs the years has ignited a traveling itch in the narrator, a teenager employee of the place.
Fact sheet.First published: Asimov's, July 1987.
Read online at Google cache.
Winner of Hugo Award 1988.
Nominated for Nebula Award 1987.