How many pieces of luggage do you want to check, sir?
I want to check these three pieces and I'll carry this carry-on bag with me on board.
Ok. Is this your luggage properly labelled, sir?
Yes, it is.
Ok. Would you please put all your luggage on the scales?
Sure. How about this carry-on bag?
Hand-baggage is not to be weighed, sir. . . I'm sorry, sir, you're 25 kilos overweight. I'm afraid there'll be an excess luggage charge, sir.
How much should I pay for the excess weight?