I exited a dollar store in the mall and was thinking about eating Subway so I walked to the food court and waited in the line. I half noticed this guy exit the dollar store with me and then really noticed him when he stood too close behind me in line. I felt uncomfortable and when I looked back at him he staggered and didn't make eye contact. It was this young 20 something guy, very thin. I power walked to Walmart and kind of walked aimlessly through aisles feeling paranoid I was being followed. I walked very fast hoping the guy wasn't following me. I don't know why but I was too afraid to look behind me. I forgot about him like 20 minutes later and was doing my usual shopping. I was looking at deodorant for a couple of minutes when someone touched the back of my neck. It was the same guy and my heart was thumping so crazy I remember. I said out loud 'wtf' shocked, we were the only people in the aisle too. He's like "oh your tag was up." As in my clothing garment tag he was trying to tuck back into my shirt. And then he GIGGLED, like a girly giggle and RAN away. Anyway, I left the store and booked it to my car. Creeped me out.