A funny joke happened in classroom

A funny joke happened in classroom.Have fun:

Talbot and his son James were called to Mrs. Cren-shaw's classroom."Mr. Talbot," said the teacher, "I asked James 'Who shot Abraham Lincoln?' and he said that he didn't do it!" "Well, teacher," said Talbot, "if my kid said he didn't do it he didn't do it!" Father and son left the school, and on their way home Talbot turned to the boy and asked, "Tell me, son, did you do it?"'