<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm 19, male and really shy and nervous around people, perfect target for bullies and chavs.
There's a chav always waiting for people at the subway stop (not really a subway but kinda), he usually asks everyone for money, I thought he was homeless or something and was just desperate but now I think that's his "job" and he is not homeless. He is there everyday from about 8AM to 8PM. I have to admit he chose a great place to ask people for money because there's no securities, no cameras and a lot of people pass by everyday.
I never had any problem with him when I was with my friends, but now I barely see them so usually I'm alone at the stop. The first time he came to me and asked me for money I gave him, just being nice... (big mistake I think)
The second time I was in a more hidden place (just because), he came to me and I said I already gave him the day before, so he said if I didn't give him 50 cents he would punch me. I thought he was joking so I started laughing, he kept a serious face though (lol), so my laugh turned into a nervous one... So I gave him the money... *sigh*
Today he came straight to me, passed everyone else, gives me a handshake (wtf...) and asked me for money again. I answered with a really shaky and high pitched voice "I don't have money with me today" *mental facepalm*, "Haha sure, how are you going to eat?", "At home..." and he let me go. I know where this is going and I don't like it, any solutions? I don't wanna fight or threat him, (I'm a pussy when I'm around people and) it's kinda of a dangerous zone...
What shall I do? I wish I was more confident...
<bot>: I see the same chav everyday, he probably noticed I was nervous when he asked me for money so now he always comes to me. Can you help me, please?