Dilbert: Would you like to take a long walk with me at lunch to get some exercise? Tina: That's a great idea! Dilbert: Okay, I'll come get you at noon. Ready? Tina: Yes, I only need ten minutes to finish this. Dilbert: I only have an hour for lunch, and your ten minutes will turn into twenty. Tina: That's okay because I wore heels today and I can't walk more than a block anyway. Dilbert: Why did you agree to take a long walk if you couldn't take a long walk? Tina: Because I was planning to walk to the store on the corner to do an errand anyway. Dilbert: You've ruined my walk! Tina: Just give me forty minutes to wrap this up.