Tim: Jill, I thought you were working on that library speech.
Jill: Well, I came down to get something to eat. And I noticed the refrigerator light was out.
Tim: So?
Jill: So I happen to think it's very important to have a nice, bright refrigerator light.
Tim: Jill, you're procrastinating again.
Jill: I am not procrastinating. Ew. Look at this refrigerator. It's filthy. I have to clean this now.
Tim: Jill, why did you agree to give this speech?
Jill: Because I want to give this speech.
Tim: Then why aren't you working on it?
Jill: Because I had to replace the refrigerator light.