A teacher was giving a lesson on the circulation of the blood. Trying to make the matter clearer, he said: "Now, students, if I stood on my head the blood, as you know, would run into it, and I should turn red in the face." "Yes, sir," the boys said. "Then why is it that while I am standing upright in the ordinary position the blood doesn't run into my feet?" A little fellow shouted, "It's because yer feet ain't empty."

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Early one morning a mother went to wake up her son. "Wake up, son. It's time to go to school!" "Buy why, Mom? I don't want to go." "Give me two reasons why you don't want to go." "Well, the kids hate me for one, and the teachers hate me, too!" "Oh, that's no reason not to go to school. Come on now and get ready." "Give me two reasons why I *should* go to school." "Well, for one, you're 52 years old. And for another, you're the PRINCIPAL!"

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You could give me 37 years to do homework and I still wouldn't do it until the night before.

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Teacher: And therefore, sperm cells are made up of glucose. Student: So you're saying that sperm has sugar in it? Teacher: Technically. Yes. Student: But it doesn't even taste like that... Teacher: what? Student: what?

 491

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Two students talk: "What are you reading?" "Quantum physics theory book." "But why are you reading it upside-down?" "It makes no difference anyway."

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