When I was about 7 years old, my mom forced me to go with her to the funeral of a friend of hers that I didn't know. When we got there, I stayed in a corner waiting for the funeral to end. Then a man approached me and said: "Enjoy life, boy. Be happy because time flies. Look at me now, I didn't enjoy mine." He patted my head and left. Before leaving, my mom forced me to say goodbye to the dead person. When I looked in the coffin, I was startled to see the man who was talking to me in the corner was the same one in the coffin. For several years, I was not able to sleep properly because of nightmares. Years later, I discovered that the dead man had a twin brother.