Tim: I think I want the blue car instead.
Stephanie: I thought we agreed to buy the red one.
Tim: I like the blue one better.
Stephanie: You always change your mind.
Tim: This is an expensive purchase.
Stephanie: What if you change your mind again after we buy it?
Tim: I promise I won't change my mind.
Stephanie: Ok. Let's buy the blue one.
Tim: Are you sure? What is wrong with the red one?
Stephanie: Nothing. You said you wanted blue.