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A group of Aquinas College students banded together to pull off possibly the greatest April Fools’ Day prank ever.

Dr. Stephen Barrows is an associate professor of economics in his second semester at Aquinas College. The prank was inspired by Barrows’ seemingly harsh cell phone policy.

The video starts with a message:

“Our professor has a policy that if your phone rings in class, you must answer it on speakerphone.”

So the students started brainstorming a way to prank the professor.

“At first we started thinking of just really ridiculous ideas, but then we remembered the cell phone policy: ‘If your cell phone rang in class, you had to answer it on speakerphone,” Bailey Terebinski, a Aquinas College senior, told FOX17.

As shown in the video, Taylor Nefcy answers her phone on speakerphone – and the look on Dr. Barrows face is priceless.

“Hi, this is Kevin from the Pregnancy Resource Center. Per your request, I’m calling to inform you that the test results have come back positive. Congratulations!” the caller says.

Dr. Barrows told FOX17 the first thing he thought was, “Why isn’t she taking this off speakerphone?” Then, he said he knew he had to publicly apologize.

“No woman should have to publicly reveal her pregnancy unless she’s doing it purposefully. So I just thought, ‘Oh, I am so sorry that this happened to her this way,’” said Dr. Barrows.

Dr. Barrows said he has changed his cell phone policy to have students immediately shut their phones off if it rings.

“Professor Barrows is a good guy and he probably wasn’t going to force her to put it on speakerphone if we didn’t kind of egg her on. So we said, ‘Answer it, answer it!’ and you can hear that in the beginning of the video,” said Aquinas College junior Josh Weiland.

The Professor congratulated his students saying this was a job that was “well, well done.”

Read more: FOX17