The trolls will ask you a lot of money for their work. Although their king rarely works because his batteries are getting low and will soon cause the fall of its protective fur. Outside is where the unkolony germs hide and proliferate at an alarming rate.

     They could be a threat for your people. Most of you therefore tend to go aggressive.

     Is there no other way out? Take the police as an example. Policemen make good use of passive force. They're actually almost always passive. The only dog they own, however, is very well trained and, in case of conflict, attacks quickly. Something very something special has to be done in order to end a conflict.