Stalker

I was followed by a Korean stalker today after school. As I finished school and was leaving the school ground, I confronted a man on his motorcycle. Average weight, my height, wore a baseball cap, new balance grey and blue wind breaker, and same color sweat pants. He started talking to me: "welcome. you work here, and teach kids. where is Milak school?" I say: "I am not sure", and keep walking.
"wait. You speak korean. come here, and show me where the milak school is. you need to show me the directions. come closer." He gets off his motorcycle and follows me. As I realize that he is getting too close to me, at the reach of his arm, I start running away. He follows me walking in a fast pace, but not running. I walk quickly to the wider street, thinking he was left behind. He gets on his motorcycle, and catches up with me on the main street, yelling "hey, come here, I asked you about the school. I know where you work."
"If you talk to me again, and keep following me, I will call the police", I yell. The man nods his head and makes a calming gesture with his hand indicating he gets it, and no need for the police. I walk quickly to the subway. As I am about to enter the subway to take a train, I get a phone call from education office. Not wanting to be disturbed by subway noise, I decide not to go in. As I talk on the phone, I see the guy stalking around the subway. I just saw him buying a ticket and circling in distance from me. I realize I need to get rid of him now. I approach him and speak very loudly; "If you do not leave me alone right now, I am calling the police". He makes a step forward. At this point I quickly walk toward the subway guy who is passing by. I tell him this has been fallowing me for the past 30 mins walking here all the way from Milak, and now wanting to get on the subway with me. As I talk to the subway man, the stalker turns back and literally runs away. The subway man and a woman who is with him, smile at me, saying that there was actually nothing to be scared about because the stalker is not coming back. Overal, they dismiss my complain and downplay my distressed call. The time is 4:40. I get on the subway and go home. Interestingly, how Koreans just do not get alert because of such incident. A passeby woman who heard me yelling at the stalker guy came up to me and the subway people and tried to defend the stalker saying that he did not understand what I was saying, the poor man apparently was too confused and had no bad intentions whatsoever. It is just another Korean covering his fellowman's ass.