One day I went to a music concert. I bought a ticket several weeks before the concert. When the day came, I went to the club. I entered and took my place. Five mitutes before the concert started a man came over to me and said, that it was his place. I started arguing and showed my ticket. The man was smiling. I looked at the ticket and realized that it was for the next day concert. I confused the day.  It was so embarrassing that I ran out of the club!