I have a twin sister. Most people find it hard to tell us apart since we look alike.
We are in the same year at school but study in different classes. One day, my teacher had planned to take a photo of our class during our school photo sessions.
However, she was unable to take the photo because I fell sick and was absent from school.
After five days of my absence, she finally got fed up and made my sister come from her class to pose for the group photo! All the other students had a hearty laugh at this.