patti sonna kadhai (grand ma tales...)

A farmer and a grocerer were involved in a barter trade. The farmer would give the grocerer one pound of butter and the grocerer would give the farmer one pound equivalent of bread. They were maintaining this arrangement for about a month. One fine morning, the farmer got a summon from the village judge and when he went there, found the grocerer sitting there too. The judge asked the farmer, "This grocerer here says that you have taken one pound of bread from him but have given him a lesser amount of butter. This is his complaint. Now you may give your justification for the same."

The farmer smiles and says to the judge, "Sir, i know not the trickery of the Grocerer. Everyday when the Grocerer's aid comes and gives me a pound of bread, i put it on one side of the scales and keep an equal weight of butter on the other scale. This is how i give him butter everyday."
The result of the case is obvious.