Wally: You just need to capture that feeling that your bladder gives you after you've had your fifteenth cup of coffee for the day. That will give you all the urgency you need.
True conversation:
Boss: We need to finish this project in three weeks. Can you do it?
Me: No way, it'll take twice that long.
Boss: But if you really work at it?
Me: No, it's too involved.
Boss: But if you really, REALLY work at it.
Me: okay, sure.
Boss: See, I KNEW you could if you really tried.