Hercule's lesson

As a young boy, Hercules became aware of his extraordinary strength—and his temper. Like most Greek youths, he took music lessons. One day Linus, his music master, was teaching Hercules to play the lyre. Hercules became frustrated, flew into a rage, and banged the lyre down on Linus's head. The blow killed Linus instantly. Hercules was shocked and very sorry. He had not meant to kill his teacher. He just did not know his own strength.