Why might someone be oblivious to a fire alarm?

Someone might be oblivious to a fire alarm due to various factors, such as being in a deep state of concentration or engaged in a loud environment where the alarm's sound is drowned out. Additionally, individuals may experience sensory overload, making it difficult to notice alarms amidst other noises. Psychological factors, like denial or disbelief that there is an actual fire, can also contribute to ignoring the alarm. Finally, familiarity with false alarms may lead to a dismissive attitude toward the warning.