"The Outhouse" joke

Once there was a little boy called Rohit who lived in the country.
They had to use an outhouse, and Rohit hated it because it was hot in the summer, cold in the winter and stank all the time.
The outhouse was sitting on the bank of a creek and the boy determined that one day he would push that outhouse into the river.
One day after a spring rain, the creek was swollen so Rohit decided today was the day to push the outhouse into the river.
So he got a large stick and started pushing.
Finally, the outhouse toppled into the river and floated away.
That night his dad Kanjibhai told him they were going to the woodshed after supper.
Knowing that meant a spanking, the little boy asked why.
Kanjibhai replied, "someone pushed the outhouse into the river today. It was you, wasn't it, son?"
Rohit answered yes.
Then he thought a moment and said,
"Dad, I read in school today that Gandhiji chopped down a Pipal tree and didn't get into trouble because he told the truth."
The dad replied, "well, son, Gandhiji's father wasn't in that Pipal tree!"