Would you say quitting looks better on a resume than being fired?

I was nearly fired once for not leaving the building during a fire drill. I was on the phone with an important client and we were in the middle of a pivotal discussion. I suspected it was a drill and my office was only a few yards from an exit just around the corner.

In a meeting with HR and my boss as I was getting an ass chewing I told them fire me if you want but I'm taking this account with me and walked out. They didn't fire me.