I work at a volunteer haunted house, and we ALWAYS have a break. Unless it's majorly busy, then all they do is come around and pass out snacks. But once a night we always take a 20 minute break, and have food delivered to the house for us to eat. We also get shirts, the whole staff gets shirts. This helps make the actors think that they are cared about and not just some random people that the owners needed to run their house, take care of them as friends.