Why did armando have the idea that everyone in the bank was watchig him?

Armando likely felt that everyone in the bank was watching him due to a heightened sense of anxiety or paranoia, which can occur in stressful situations. This perception might have been fueled by his own insecurities or fear of judgment, making him more aware of others' gaze. Additionally, the environment of a bank, often associated with significant financial transactions, could amplify his feelings of being scrutinized. Such thoughts can create a self-fulfilling prophecy, where his belief leads him to interpret people's behavior as watchful.