While some dads are dealing with their unruly children by lip-synching to their temper tantrums, other dads are throwing freakouts of their own in response to their offspring being unexpectedly good.

In this "hidden camera" footage posted today on YouTube, a British high school kid captures the moment he informed his dad of his passing grade in math.

As the teen explains, you need to pass math in England "to basically do anything with your life."

A year prior to this video, Ari says he was staring down the barrel of an F after a lifetime of struggling academically.

"Neither me or my dad or my teachers thought I was going to get my C," he writes. "I know some of you might be saying, well [a C] is nothing but for me it was hard to get."

[H/T: HyperVocal]