I went to the amusement park with my friends and they were in line to ride a roller coaster. I hate rides, so I'm the "bag holder" and I sat down on a bench (waiting for them) but there was a guy on the same bench. I didn't sit directly next to him, anyway when I sat down, he got up and moved. But he stood on the other side staring at me. Then I saw him again (later on) and he was with a bunch of people, and he was again, staring at me. Why?