I am working in a coffee shop. Every 30 seconds or so, the man next to me snores quite loudly, several times.
The man's feet twitch from time to time. His eyes are open. He's reading a newspaper, for goodness sake. He's also snoring like a grizzly burrowed into a snowbound cave in the mountains of Montana.
Ambien? Sleep apnea? Poor nasal hygiene?
It's a complete mystery.