You were walking on the sidewalk until you accidentally bumped into someone. The guy fell to the ground and you helped him up, but then he walked away. You had a feeling that you knew that guy, but brushed it off as nothing. After a few days you go to a concert where your favorite rock band is performing. While they were performing you looked at the guitarist and recognized him. Soon the band members have a meet and greet and you go up to him.“Hello…” he said, he seemed to recognize you too.