They attack unprovoked. They will automatically chase after visible targets.
Changing the unit type to worker stopped them from chasing anything they see. How can I stop them from running away when attacked? I basically want them to be able to attack if you tell them to attack a specific creature, but otherwise just sit there and take damage. Of course, they also need to be able to walk around.
Also, making the hero a worker unit doesn't always stop him from attacking back if attacked. Any other solutions for that problem?