How did his wife feel when she heard what he told her?

John telephoned his wife, "I’ve managed to get two free tickets for the theatre. Please come and meet me outside my office. We’ll have something to eat first and then go to the theatre."
    John’s wife was very glad because it was quite a long time since they had been to the theatre, which she liked very much. She met her husband as he told her. They had dinner first and got to the theatre in good time.
    At the entrance of the theatre, John took out his wallet (钱包) to get the tickets, "Mmm? That’s very strange, "he said. "They aren’t here!"
    "Try your pockets," suggested his wife. But the tickets were not there either.
    John looked very worried. "What’ s the matter?" asked his wife. "Well," John explained, "I remember what I did with the tickets. I put them on my desk and forgot to pick them up before leaving the of rice !"