You know that every NPC squad has its own leader or boss that every other person in squad will follow. If you whack down the boss and heal him and carry him to cage, others will follow. They of course dislike you because you put their leader to cage but beating one of them and healing him again will get positive relations again.
So... The result is that their leader is in cage and they will swarm near their boss, killing any hungry bandits or dust bandits that are stupid enough to get too close.
Here's the pic:
http://imgur.com/mYhq3
Try it out fast because I think this has to be fixed somehow in the final game.