When the teacher got frustrated because the students weren't paying attention to the class about Isaac Newton, he exclaimed, "Don't you understand the gravity of this situation?"
Son: How much does it cost to get married, Dad? Father: I don't know son, I'm still paying for it. Son: Is it true? Dad, I heard that in India, a man doesn't know his wife until he marries. Father: That happens everywhere, son, everywhere.