The Nightingale and the Blindworm
Anightingale and a blindworm cohabit happily, other than the fact that they only have one eye each. When the bird is invited to a wedding, the worm kindly hands over her eye so that the nightingale can get a good gawp at the bride and groom. the bird decides she likes being able to see in more than one direction and refuses to give it back. the blindworm swears she will have revenge on the nightingale’s children, her children’s children, their children and so on and so forth.
The moral of the story
generosity goes unrewarded and grudges should be held onto. Birds and worms cannot be friends.