Totally worth it
You must hit it where it hurts if you truly want to convey the fact that you’re no longer romantically linked with someone because they violated your confidence and humiliated you in the process.
Vandalizing their car and publicly humiliating them is one of the greatest ways to do so. Of course, you must truly be dedicated to this breakup because it isn’t a plan for those who want to go back out there with a pail and soapy water once it’s over.