He is a regular customer/lurker who frequents the store I work at once/twice during the week. The first time I saw him he was by himself I was wondering if he was looking for something particular so I offered him some help by asking him if there is anything specific he was looking for. He smiled and then jested(?) he was looking for me even though I have not met him before and without anything else he just walked away. For a few times over the span of two to three months I saw him from time to time and he recognized me as well (I get that a lot from people since somehow I stand out and is easily recognizable). For a few more times he said the same thing when I asked the same question.
Today, he was in that same spot where I saw him the first time several months ago and his approach was completely different when he saw me. He first asked what my name is (I did not have my name tag on because I do not want people to know and remember me there, and most of my coworkers also do not wear their name tags) before introducing himself first which alerted me something is probably wrong continuing this as the last person asking for my name before starting out an conversation turned out to be totally pissy. I said my first name and then he introduced himself. He then moved onto asking more questions about me, like where I am from, do I work full time, do I have a cell phone, when do I get off work. It was not that bad when he heard where I told him where I am from (the town I live in actually seems to be a different one from his) but it became awkward when he asked if he can have my phone number. I hesitated by instinct and then he took out a piece of paper right from his pants' pocket with his name and phone number already written on it trying to see if I would give out my number. I kind of brushed it off saying he could just come to the store if he wanted to see me and he started to emphasize on wanting to see me outside of work, with his persistent query of when I am off work, especially if I am available today after work. My body pretty much got chills and I kind of used "I better be getting back to work" as I get away from him. I pretty much moved away from that spot for a good 15 minutes while my heart was pounding, my mind going through all the scenarios of what was going on and why I was reacting this way. I went back there eventually and he was gone but I was actually on a lookout to try to stay as far away as possible from him for the rest of my shift. Luckily, I got out and haven't see him since.
I have never experienced anything like this before and I was and still am nervous and scared of seeing him again. While I analyzed why I am scared I came to a halt, as I became scared because of how I assumed his intentions from all those questions, as well as asking me if I am an acquaintance of another guy in another department whom I assumed he is fond of.
But what if I was overreacting? What if I am wrong about what I assumed what he was trying to do? But then I have never experienced that kind of things before so what if I was wrong and was just simply too shy and scared?
Anyone have any insights into what his intentions were? Or have experienced something similar who cared to share his/her thoughts about this?