A childhood belief about people

One day when I was 4 years old I asked my mother how her mother had died. Rather than try to explain what heart disease was, she told me that my Grandma had a really bad heart that just wouldn't keep working.

Years later, we had a house full of people and I began explaining to a large group that my grandmother was soooo mean, it killed her!

My mother was really upset with me, until she realized that she was the one who had told me about Grandma's "bad heart." She then changed her wording to "sick heart"