Agreed. Creative revenge is the best.
I have a friend (whom you all may be passingly familiar with) that, when he was in college, lived in a studio apartment that had a shared kitchen for like every 4 apartments. Well, he had purchased some lovely avocados, and they went missing.
Long story short he figured out it was the tweaker lady next door who stole them (who also had half her arm amputated, but that's not relevant to the story), and after some back and forth and getting nowhere (as female tweaker amputees are an unreasonable lot), decided to take matters into his own hands.
He figured out where the walls were thinnest between the apartments (the bathroom), decided he was going to teach himself the keyboard, so he purchased one, got rip shit stoned, and then spent the next several hours trying to play the song "I Try" by Macy Gray on the keyboard with accompanying vocals.
The tweaker lady lost her absolute shit, another neighbor called in a noise complaint due to her freaking out pounding on the wall screaming, she was uncooperative with police, and was hauled away and evicted (shockingly, she also hadn't been paying rent).