It's inappropriate to drink a beer in a government office.
Jake, who is carrying some beer for his friends in his backpack, is waiting in a long line at immigration services and is bored.
Jake wants to pass the time.
Jake strikes up a conversation with a person near him in line.
Jake takes out a beer and quietly drinks it, taking the edge off of the wait.
The person Jake speaks to is also entertained and the two become friends.
The people near Jake can smell the beer and feel sick to their stomachs.