No, it was nothing like that. You see, a dragon's body is strong and nearly impossible to destroy, but their hearts are week. After sometime their hearts can fall into blood lust. They do not recognize anyone and they will try to kill anything that moves.

That was what happened to Micheal, my dragon. His heart fell into blood lust and thus he could not hear me anymore. I had to destroy him before he could harm innocent people. [The memory of it was still pretty painful even though it was over a thousand years ago.]