The assistant classics professor stuck a command for his students to send him a picture of Alf—the ’80s sitcom star and alien from the planet Melmac—into the middle of his syllabus to see if anybody noticed. 

From the number of Alf images he received, he figured he’d be able to find out early on if he’d have enough students to keep the class engaged, or even to keep it going. And maybe, he thought, he’d teach them something along the way.

So did it work?

“Eight out of 20 have [responded] so far,” he said. “I don’t know what to make of that.”