When a mechanic's lien isn't good enough, there's always the sledgehammer lien.
In this video, an irate contractor smashes his bathroom tile work in front of the befuddled homeowner. The woman pleads with him to stop. He asks "Is someone going to pay me?" No one says "yes," so he goes back to smashing the wall to bits.
When he's finished, he tells the owner that no contractor will fix the destroyed bathroom when they find out he wasn't paid for his work.