Athena turned a man to stone for spying on her while she bathed naked in a lake.
Talk about stone balls...
Yep, fight was between Athena, Hera, and Aphrodite and led to the Trojan war.
Artemis was the twin of Apollo, Athena was born out of Zeus's head after he swallowed her mother, Metis. Hephaestus cleft his head open when he complained of terrible headaches (which was Metic making ARtemis's armor). Seems fair.
I suppose that Edith Hamilton's Mythology book left a small impression.