A Shanghai white-collar worker surnamed Li felt aggrieved about being fired for using MSN for chatting during work, and thus filed a lawsuit. As the company wrote relevant regulations prohibiting employees from using chat tools at work into the company memorandum after voting in the workers' congress, and Li signed and recognized the memorandum, the Shanghai No. 2 Intermediate People's Court made a final judgment that it was legal for the company to terminate its labor relationship with Miss Li.