Teacher: Billy,name one important thing we have today that we didn't have ten years ago.
Billy: Me!
Billy: I don't think I deserve a zero on this test.
Teacher: I agree, but it's the lowest mark I can give you.
Mother: Why did you get such a low mark on that test? Billy: Because of absence.
Mother: You mean you were absent on the day of the test? Billy: No, but the kid who sits next to me was.
Mother: Why on earth did you swallow the money I gave you? Billy: You said it was my lunch money.