Piggy on the railway picking up stones
Along came a train and broke piggy's bones
Oh said piggy that's not fair
Oh said the engine driver I don't care

and

Way down south, where bananas grow
A grasshopper stepped on an elephant's toe
The elephant said, with tears in his eyes
Pick on someone your own size

have become family catch phrases 'oh said piggy, that's not fair' & 'pick on some one your own size'