Here's your bill, sir.
Oh, thank you. Let's have a look at it now. Goodness, it's a lot more than I expected.
Would you like me to explain anything, sir?
Just a moment. Yes, what's this charge for $ 21.50 marked 'J'?
'J' is a charge for a long distance telephone call, sir. Did you make a telephone call that night?
Yes. I remember now. Good heavens! We must have talked for a long time. And these ones, 'L' for $ 32.40, and here's another, $ 9.50. What are they for?