Maybe it was because his class was interrupted, maybe it was because he doesn't like growing older or maybe he just hates surprises, but when students surprised their teacher with a birthday celebration, he did not react well.
As students in party hats entered his classroom serenading him with "Happy Birthday," the teacher looked unhappy. Then, when one student tried to take a selfie with him, he lost it, grabbing the kid's phone and throwing it hard to the ground.
The party ended pretty quickly at that point, with the kids who came into the classroom quietly leaving, and the ones at their desks having to sit in the uncomfortable silence that followed.
Things got weird....