zombies, World Fantasy, and statistics

When I registered for the World Fantasy Convention this morning, I stood in a long line in front of the registration table as people finished setting it up.

"Everybody whose last names start with A through L, stay here. Everybody whose last names start with M through Z, come over here."

Exactly one dude and myself stepped "over there", which neatly took me from the end of a long line to a non-existent one.

The guy behind the table looked at the first line and said, "All you guys have last nam...