It's irresponsible to be hungover at work.
Martin is at a party for his friend that is hosted at a bar.
Martin wants to go to work the next day.
Martin doesn't drink and leaves the party several hours early.
Martin gets drunk and then goes into his job the next morning.
Martin's boss commends him on how alert he is and the good job he is doing.
Martin's boss sends him home because he is hungover and unproductive.