I remember my early days as well, allthough it was 2nd edition. My brother and I were the players and a friend of mine dm'ed. We were exploring an abadoned mining town trying to figure out what happened to the populous. We stumbled upon the only two inhabitants, a man and a woman. I was suspicious and questioning them turned into a fight. We managed to set the man on fire (he was very hairy and it seemed like a good idea) as we were getting our heads kicked in by the woman who was a spellcaster of some kind. Then we ran, she followed and blew us away with a fireball. This is how I learned to always kill the mage first.