He knew better than to make an omelet with expired eggs, but he was hungry, and stoned, and besides, they were only four days out of date.  So he cracked one open and smelled it, and it smelled fresh enough, he supposed.  He realized he had never smelled raw eggs before, at least properly.  He had no way to gauge the smell.  As long as they don't stink, he reasoned.  Into the pan it went.  

He smelled the next one.    It smelled very good.  He started liking the way raw eggs smelled.  "I've only always smelled cooked eggs before."

The third one he kept the shell.  "I'm going to take this with me."