Creepy Chinese Security Guy

One night whilst getting 串儿 right outside the gate of the university, I decided to be nice, benevolent, and ask the nighttime security guard if he wanted a skewer. Cuz, I mean, he was all by himself there and it was around 1 AM and really who talks to security guards? At first he is suspicious but then he agrees and says I can get him whatever skewer I want. I come back with a 羊肉串儿 and he asks me why I gave him this skewer. I tell him simply because he's out there by himself opening gates for us. He then asks me if he can have my number, to which I give him a -_- really look and say bluntly, "我不要给你我的手机号码" and walk back the steps to the dorm.