Explanation Of George Washington's Poem

I CANNOT TELL A LIE
Indian Father lines up his three sons. "One of you pushed outhouse over cliff, two nights ago. Which of you did it?" "Not me" "not me!"
"Not me!!!"
"Come on, I promise not to punish you. Who did it?"
"Not me!" "Not me!" "Not me!" "Let me tell you story of great American hero,
George Washington. When he was a boy, he chopped down a cherry tree. His father came to him and asked, 'George, did you chop down that cherry tree?' 'I cannot tell a lie, father, I chopped down the cherry tree,' said little
George. 'You should not have done that, but since you told the truth, I will not punish you.' And George
Washington grew up to be
President of the United States!"
"Now I ask you. Who pushed outhouse over