For work

This story was told by my friend and took it to his friend, who operates a gynecologist. By the nature of its activities, it needs to work condoms. Once they have it over and since the nearest pharmacy was in the adjacent building, then she went to the pharmacy, where he held the following dialogue:
Familiar: - Do you have condoms?
Chemist: - Yes. Perfumed: orange, mint, peach and so on. You have?
Familiar, quite seriously: - I have any. I have to work.
Chemist, barely holding back a laugh: - I understand that work, but it's still what?