Many celebrities have expressed their concern over the sasaeng activities, in 2012 a member of JYJ, which has the most sasaeng fans among all K-pop idols,[232] was accused of resorting to violation and shouting when confronted by stalking fans on the street.[240] Super Junior member Kim Heechul and popular singer-actor Jang Keun-suk have also reacted angrily at sasaeng moves.[232] In response to a growing number of K-pop fans displaying anti-social behaviours, a law was passed on March 11, 2013 to discourage harassment and making it illegal to infringe the privacy of a person. Under the revision, first time offenders making persistent phone calls and sending letters could face a fine of up to 80,000 South Korean won