Answer:
Armando was afraid, the thought on his mind was that everyone present in the bank was watching him, he was been paranoid, there was fear in his mind that he will be robbed of his money. "Fear" on him made him to behave in this manner.
Step-by-step explanation:
Armando is a leading character in the story known as "Fear" that was set in Mexico, He went to withdraw 50000 pesos from the bank so that he can buy a house. There was so much fear in him, so he couldn't think in a logical way. All questions the bank teller was asking him seems unnecessary to him, The fear in him increase as the teller was counting his money loud. He was afraid as the fat man was staring at him, he then became nervous and he was thinking that he will be robbed of his money by everyone because he was carrying 5,000 pesos which is a huge amount of money.