Some dirtbag stole your spare and no everyone wants you to do something illegal to get back at him. Makes perfect sense... Personally I'd call the popo and get shiat handled legally. If they took it a step further and retaliated then I'd light their car on fire, bust down their door and drop a duece in their fish tank.
Oooops dude i'm so sorry your breaks wouldn't work right before you slammed into that 18-wheeler! Note: The cops won't do anything other than laugh at you and maybe talk to him.