The Houston Fire Department has a rule: If firefighters want to be promoted, they have to pass a test. If they miss the scheduled captain's test, they could wait years for another chance. There are no postponements — not even for firefighter Beda Kent, who gave birth the night before this week's test. She wouldn't miss her chance. So after labor, she slept two and a half hours, then went to the exam. She's waiting for the results while tending the baby.