Friendly Fire

I started playing computer games cooperatively with my stepfather back in 1993 with the release of Doom, a wildly popular first-person shooter.  However, our philosophies about the best way to play the game differed greatly.  I was more of the sneak into the room quietly, creep up behind the monster, put one bullet into the back of his head, and then move on to the next target kind of guys.  My stepfather was more of the fling the door open, proceed to fan back and forth, while unloading your entire arsenal of bullets into the room, not sure exactly what you hit because you can't see it through the flare from your gun kind of guys.

I'll admit that his way did serve its purpose and proved effective.  With very little threat to himself, he did manage to wipe out the entire room.  Ammo was plentiful enough, so the cost was acceptable.  There wasn't really a downside to his method.  That is, unless I went into the room first.  Then, I'd find myself being attacked by an unseen enemy.  Hiding behind barriers to escape the monsters' attacks, only to find that somehow they were still managing to hit me.  After suffering multiple deaths on each level, I finally figured out that it was friendly fire that was fragging me.  Who would have thought that I'd have more to fear from my own team than from the monsters?