Some dude just came to the door.
"I'm from MORI. We're doing a survey about travel. Could you..."
"I'm afraid I don't really have time for that now."
"Okay, when would be a good time?"
Now he's coming back at 6, when I doubt I'll be home. What I should have said was "I'm not interested in doing surveys. He caught me by surprise, dammit!