What unforgettable life experiences do you have in your life?

Three years ago today, what happened that day is unforgettable and fresh in my memory, and it still feels terrible in retrospect. Fortunately, my son and I have a deeper fate. Otherwise, my son would have lost it that day. I clearly remember that on that day, an exhibition was held in our county town, located in the central square. Because it was the first day, there were crowds of people everywhere, and I happened to take my three-year-old son for a stroll. I was worried that my son would get lost along the way, so I kept holding his hand tightly. As it happens, I took a fancy to a wool scarf, so I touched it with my hands to see how it was, and then I surrounded it by the way. When I came to my senses, my son disappeared, which scared me to death. He was pulling my clothes just now, just for a minute or two. He should have seen the fun and was attracted to it. At that time, I called my son's name as I ran forward, but I didn't see him for more than ten meters. I had to look in the opposite direction again, because time was short, and it was estimated that he couldn't go far. I still called his name as I ran, and not far away in the opposite direction, I saw him crying and looking for me. Thank goodness, I finally found him. I quickly stepped forward, hugged him tightly, cried with excitement, and told my son that I would never lose you again. Since then, I seldom take my son to crowded places. This lesson will never be forgotten by me.