Pick up a trebuchet at your nearest trebuchet supply store. Assemble. You’ll no doubt need one of those annoying allen wrenches (I am sure you have one leftover from an Ikea purchase). Acquire wayward piano.
Install assembled trebuchet on your rooftop. It is helpful if you live frustratingly close to your ex. Carefully calibrate trebuchet to fling and drop the piano on your ex-boyfriend as he exits his apartment building.
Go have a latte. Retribution makes one thirsty.
