Teacher: "Why did you laugh?"
Boy: "I saw a strap of your bra."
Teacher: "Get out! Don't come to class for the next 1 week. Another boy laughs..."
Teacher: "Why did you laugh?"
Boy: "I saw both straps of your bra."
Teacher: "Get out! Don't come to class for next 1 month."
The teacher bends to pick a chalk and little Johnny starts walking out of the class.
Teacher: "Why are you going out?"
Johnny: "With what I saw I think my school days are over."