You joke but my father actually did something like that once. Some company kept sending him a bill for something he never ordered or asked for and he kept replying with certified letters essentially saying "I don't know you and I'm not paying you." Finally, he got so fed up that he wrote the company again and cc'ed the letter over to our Attorney General and he sent the company a bill along with it for all of the time he had spent correcting their billing errors. Imagine his surprise when a few weeks later he received a check from the company for the amount that he billed and they no longer sent him erroneous bills...
