What is the most heartbreaking thing your child has told you?

My husband died suddenly when my son was 5 years old. I sat him down the next day to explain to him that daddy had died. I had to do it in a calm, almost practical tone because I didn't want him to cry. I felt that he was too young for his heart to be broken that way. He took it all in calmly.

Then he said to me, “Mommy, I want a new heart, this one hurts.”

I learned that day how much physical effort it takes to stop oneself from crying.