April 7, 2014 7:00 AM EDT

Okay, we know you’re probably over the whole April Fools’ Day prank thing, almost a week after it happened, but this one is incredibly clever and awkward and hilarious no matter the date. A group of students decided to prank their instructor, after he established a policy that if a student’s phone rings during class, he or she must answer it on speakerphone, no matter the consequences.

The best part of the prank is the professor’s reaction. Watch above.

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