The Paranoia of Working in a Drug Store

I used to take walks after work in the area, especially since I was super close to the river walk. One of my team leaders and I would be scheduled to work certain Thursdays until 1 a.m. on one of those days. We were cleaning bathrooms as one of the last chores when we noticed this man staring at us. He tried to ask for my number and I kindly told him no. Every shift after that he would already be there just hanging out or would walk in mid shift. Sometimes with somebody else and sometimes by himself.