According to the language school chain’s instructor contract, foreign employees are forbidden to “participate in any interaction with the clients of the employer outside the place of employment.” In theory, insist Nova instructors, they are under threat of the sack for so much as a chance encounter with any of the company’s 450,000 students.
http://www.japantimes.co.jp/cgi-bin/getarticle.pl5?fl20040601zg.htm