JYJ's�Park Yoochun recently�expressed his frustrated�feelings about�sasaeng fans. On March 12th, the star left the following message on his personal�Twitter:�"Please don't follow us. Don't come to our house either. Sasaeng!" 'Sasaeng' is a term meant to describe a particular group of fans who stalk their favorite star's private lives and every movement with an emotion that exceeds a normal fan's. Netizens responded, "I think Park Yoochun is suffering a lot because of sasaeng fans that follow him to his house", and "Love expressions towards celebrities should have some restraint." Source: Sports Chosun via Daum