Illustrating the origin of the term 'sour grapes', (post-Aesop, that is), Crow gets Fox to trade him his picnic lunch for some grapes high on a vine. After many difficulties, the fox manages to get to them but discovers they are sour indeed.
1967
2015
2009
2016
1966
2002
1961
2011
1929
1960
2013
1991
1954
2003
1986
1994
1962
2017