Guardian Angel
Hank takes his job seriously. He clocks in every day on time, and stays exactly how long is required of him. So what if he never volunteers for overtime? There are plenty of colleagues eager to cover for him.
Hank never drinks to excess while on duty. Sure he may get a little tipsy on occasion, but not to the detriment of his charges, who remain his top priority. If anything, drinking in moderation calms his nerves and makes him more effective at angeling.
Yes, he sometimes parties with some friendly devils, but he's trying to convince them to repent.