Posted this in General by accident before
Basically I was farming the red dragon by running back and forth between it and the bonfire, letting it roast those guys on the bridge.
At one point it didn't seem to ever settle down because I would go up the ladder and already it would be flying over and scorching the mobs and I'd instantly get the souls.
After several more runs I went to the bonfire and suddenly just got 10,000 souls (which you get for killing him I read)
Now he's gone.
So I'm a little upset that I never got a chance to obtain the Drake Sword from him, oh well it doesn't scale so I guess it would quickly become useless anyway (sure would have helped in the beginning areas though)
But is this a common occurance/bug/etc? Anyone else have the dragon just die on them?