Stalking :
Philippine newspaper Manila Bulletin reported that during a press conference for a concert in Santiago, Chile, Korean boy band JYJ confirmed that they were victims of "invasion of privacy and stalking." According to JYJ member Junsu, some fans exposed their private phone calls and placed GPS trackers on their cars to monitor every move. There were instances of breaking and entering where fans would take pictures, try to kiss them, and steal their private items." Some sasaengs even installed CCTV surveillance cameras near the homes of their favourite K-pop idols. On any given day, the more popular idols are reported to have at least 100 "full-time stalkers" on their heels.
In an incident involving actor Song Joong-ki, an evening jog turned into a thrilling chase starting with two fans running after him when they caught sight of him in a taxi According to the web portal Yahoo!, some fans hire "special taxi drivers" to follow their idols. Yahoo! refers to an article by the Korean newspaper JoongAng Daily, writing that "there are taxi services catering specifically for these fans. They are willing to speed at up to 200 km/h, chasing after the vans transporting the K-Pop idols."These sasaeng taxis can be found waiting outside concert halls, celebrity dorms or broadcast stations to catch desperate fans. The cost of renting out a sasaeng taxi for one whole day of stalking varies from $300 to $500 USD. A sasaeng taxi driver of four years, said "I charge $30 USD per hour. It’s hard to stop because you can make a lot of money out of it." In comparison, the average cost for waiting inside a normal taxi in Seoul only costs about $9 USD an hour. Another driver told reporters that although he knows he could be breaking the traffic rules, "the chase can be quite thrilling so we give in to the kids as well." He charges up to $400 SGD for a day but has now stopped accepting such requests.