A: Can you teach me to swim? B: Why don't you take a class instead? A: Swim classes are embarrassing. B: I suppose I can teach you. A: How did you learn to swim? B: My father threw me into a lake when I was 4 years old. A: You could have drowned! B: I could have, but I swam instead. A: Is that how you plan to teach me? B: It's the best way to learn. A: I think I will sign up for the class after all. B: Okay. That is less work for me.