Mine Host's mobile phone rings. His number is a state secret, thus the caller is likely quite important.
The caller is actually some cute salesgirl for some life insurance company connected to American Express.
The cute voiced girl blunders onward with the sales pitch.
She misses the verbal clue from Mine Host that he is not happy with the call, but is prepared to listen.
She drones on, Mine Host tunes out. Eventually she gets to the part where Mine Host has to verbally agree to her charging money to his American Express card.
He says "No".
Mine Host calculates that she has taken up Seven minutes of his time.
He informs her that he will divert to a competitor's card the next several thousand dollars that his customers wish to put onto their American Express card.
Waste Seven minutes of Mine Host's time, have several thousand dollars diverted to Visa or Mastercard.
Something for American Express to think about.