If someone intentionally set fire to your home and you had ten minutes to get out, would you try to save the arsonist or your belongings?
What? How did the arsonist get trapped in my home? Did a wooden beam fall on him because he was too busy STARING AT THE FIRE? Did I start a feud with a mentally handicapped person?
Also, to answer the question, I'd grab my shit instead of saving the PETARD-HOISTING ARSONIST. Am I even aware of their presence? Are they screaming for help?
I mean, it's kind of important to know if I know that this dude set a fire in my house. If I didn't know they were flinging matches all willy-nilly and GETTING CAUGHT IN THEIR (confoundedly stupid) HATEFUL MACHINATIONS, I would certainly try to save them! But I assume this scenario involves said arsonist bursting into my abode, turning on his flamethrower, and promptly tripping over a set of marbles. What an ass.
EDIT: BONUS SCENARIOS
• The arsonist can't get out because I live in the Winchester House! WHOOPS!
• The arsonist can't get out because I live in an apartment complex. My neighbor collects gasoline, as a hobby.
(OR: they don't pay their electric bills and they have to do everything by candlelight. By a freak coincidence, just as my malefactor is setting the apartment on fire, my neighbor knocks over several of their candles, and this EXTRA FIRE prevents the arsonist from escaping???)
• The arsonist got in the house because I left the door ajar, but they accidentally closed it behind them and can't get back out because they have a phobia of doorknobs.
• The arsonist develops a sudden interest in cosplaying as Thích Quảng Đức.