the story of the frog and the ox
The Frog and the Ox The Frog and the Ox appears among Aesop's Fables and is numbered 376 in the Perry Index.[1] The story concerns a frog that tries to inflate itself to the size of an ox, but bursts in the attempt. It has usually been applied to socio-economic relations.
O Brother, Where Art Thou? Near a river, the group hears singing. They see three women washing clothes and singing. The women drug them with corn whiskey and they lose consciousness. Upon waking, Delmar finds Pete's clothes lying next to him, empty except for a toad. Delmar is convinced the women were Sirens and transformed Pete into the toad. Later, one-eyed Bible salesman Big Dan Teague invites them for a picnic lunch, then mugs them and kills the toad.