Teacher: "Now, class, can anyone tell me what the word 'Can't' is short for?"
Lizzy: "Can not."
Teacher: "Very good! Now, can anyone tell me what 'Won't' is short for?"
Lewis: "Will not."
Teacher: "That's right! Now, can anyone tell me what 'Don't' is short for?"
Harold: "Donut."
MORE WAYS TO LAUGH
Dan the Man 009 : Voted