Metamorphoses Book 12: Nestor and Hercules
As Nestor told the story, Hercules' son reminded the old man that he'd left Hercules' role in defeating the Centaurs out of the story. Nestor explained that he didn't mention Hercules because it brings up the painful memory of how Hercules killed his eleven brothers including Periclymenus. Periclymenus transformed himself into an eagle and clawed Hercules face and Hercules shot him with an arrow that killed him.
After that story, the Greeks went to bed.