What did Saint Thomas Aquinas do as a boy?

Answer 1

He saw his little sister killed by lightning and was scared of it from then until he died!

Answer 2

As a boy, Saint Thomas Aquinas spent time studying at the Benedictine abbey of Montecassino, where he began to show his intellectual abilities and devotion to learning. He also faced opposition from his family, who did not support his decision to become a Dominican friar.