It was an annual prank at my high school for the students to hand the biology teacher a snake on the first day of class. If the teacher panicked or freaked out, they knew that they were bullshit. But if the teacher handled and petted the snake, they knew the teacher knew their shit. Usually, the snake was a garter snake or some docile non-poisonous species. But one year, they had found a cottonmouth. As for the teacher’s reaction to the snake, well, they never got the chance. The snake bit one of the students and killed the dumbass.