Mr. Smith and his son Rick were called to Mrs. Liventhal's classroom.©JOKEDEMO.COM

"Mr. Smith," said the teacher, "I asked Rick 'Who shot Abraham Lincoln?' and he said that he didn't do it!"©JOKEDEMO.COM

"Well, teacher," said Smith, "if my kid said he didn't do it -- he didn't do it!"©JOKEDEMO.COM

Father and son left the school, and on their way home, Smith turned to the boy and asked, "Tell me, son, did you do it?"