This exact thing happened with my cousin. We were staying at a cottage with his family and he had a day where started really enjoying catching frogs and yeeting them against rocks to kill them for some reason. He must have killed like 30 when his mom found out. Then she explained to him that frogs are living animals with mommys and daddys of their own and my cousin suddenly became so traumatized he cried for hours.

I used to love doing these types of things as a child and I was terrified of dismemberment in movies. One day, my dad told me that what I see in movies is what the frogs, fish, and bugs that I'd torment (essentially anything that didn't make terrifying noises) would endure. That was a massive turning point in my life.