Here's a puzzle I came up with when a false fire alarm went off in our office. In the following dialogue, R is my colleague and S is me.
S: Hey! There's a fire alarm. Run!
R: You run.
S: No, I am a true programmer. My job is to keep programming even at the
face of death.
S: Yes, just like … Oh, wait! Let me ask this as a puzzle. There
is at least one profession in which you can not quit your job even if
there is fire. The job requires you to keep working even though there is
fire and you as well as your entire team is going to die.
S: No, firefighters may have the option to exit a building on fire if
the fire poses danger to their lives. I'm talking of a profession where
there is no such option.