Poor guys, they were probably traumatized I think I never had any zombie lucids my self, but I have regular dreams of them every once in a while. Zombie apocalypse and all that, sometimes it's cool and sometimes its a more serious dream. Usually it follows the same formula that I'm with a group of people and we're trying to reach a mall or some huge place similar that we could turn into a fortress. Like in the Dawn of the Dead- movies. I always found the idea somehow fascinating Nice dream controlling by making the zombies disappear. You could set an intention that you will stabilize the dream and ground yourself into it as soon as you reach lucidity. You could be able to stay in the dream longer by doing that. Do you have any LD goals?