According to this article and this post a man hit himself with a boomerang and then proceeded to sue himself.
A Kentucky man who threw a boomerang that flew back and hit him on the head has sued himself for US$300,000 (HK$2.32 million) - and won.
And astonishingly, it will not cost him a cent because all the money he won comes from his insurance company.
Is this true, or has there ever been a case where somebody has successfully sued themselves, won, and gotten their insurance company to pay for it?