You see your little sister kneeling next to an ant hill with a magnifying glass in her hands.
“What do you think you are doing?” you ask her strictly.
“I’m burning the ants!” she answers, not even trying to hide her excitement.
“Why?”
“Because it’s fun, duh!”
Suddenly you notice a big shadow passing you. You trace its origin and find a big round object has just flown by, heading to the city center. A flying saucer. It shoots a beam downwards, setting the city on fire.
“Oh god, why?!”
Though you feel like you might already know the answer.