The Neuroscience teacher was considered quite the genius. However, he lacked the most basic speaking skills.
“This sausage-shaped thing is called myelin,” said the teacher pointing at a diagram of a neuron. “When it’s gone… bzzzt.”
One day, as he prepared to start the class, someone screamed BZZZZZZZZZZZZT from the back row. All students erupted in hysterical laughter.
The teacher slowly walked towards his desk, pulled a button-shaped thing from inside a drawer and hovered a finger over it.
From that day onwards, before sitting down, the whole class would anxiously examine their chairs while the Neuroscience teacher snickered, waiting.