I took the flyer, which was for a 21+ event, thanked him, then looked at him. I didn't realise who he was, but suddenly a thought occurred to me. I knew him. But I didn't know from where, probably because I was so tired.
So what did I do?
I screamed, "I KNOW YOU! I!! KNOW!! YOU!!" In his face while I tapped him on the shoulder. He smiled and nodded. I'm a damn genius.