A good teacher is willing to give his life for his students. A better teacher is willing to give his students’ lives for their education.
Kill ’em all, I say. That’s the only way to teach these ungrateful youths.
Fortunately, for this school’s insurance policy, this demonstration of the flammability of liquid methane* did not kill any kids .
*I’m not certain this is liquid methane being burned in this classroom fire experiment, but a couple YouTube commenter seem sure and that’s more than good enough for me.