(The standard line you will hear from the server in 25,000 Tim Horton's Donut shops all across Canada.)
The last girl that said it to me, I smiled and said, "Ah! You wish to render assistance to the next person in line? Excellent. I am that person. Now, let me see....what do I want tonight?"
She was not amused. They always expect you to be in as big a hurry to be done with the encounter as they are...