Although the job of an audiologist isn't a particularly stressful one—you're not normally swinging from rooftop to rooftop with your bag of diagnostic and other tools saving Spiderman or Batman from impacted ear wax—you will work with emotional people.
Some people are born with hearing loss and they're used to it. (Not that it's fun or something they'd choose, but they've grown accustomed to it.) But when you're working with people who've suffered some sort of hearing disability due to an illness, aging, or even one single exposure to a loud noise (such as a bomb or a Beastie Boys concert), there will probably be some tension, emotion, and fear. That's where you'll need to play part audiology doctor and part therapist.