As far as revenge goes, this kid did everything just right. He didn't just fly off the handle in the heat of the moment - he scoped out his enemy, created an opportunity to infiltrate his life, and then seized the moment when it presented itself. He played his hand so well that the bully actually ended up confessing his own crimes entirely by mistake while trying to throw the kid under the bus!
There's something so satisfying about seeing bullies get what they deserve. Sometimes that smackdown is metaphorical, while other times it can be quite literal