^^If you mean, massacre permits. Then definitely not, you can easily have that thrill in a videogame. In some ways this is hypocritical because of where I stand on gun and weapon laws, but killing anything out of sheer fun is not okay with me.
^ If you are like me when I don't eat for too long, extremely irritable and easily angered, probably a good idea.
Have you ever felt bad for stepping on a cat's tail?