Is it normal to be charged a bond in amateur musicals?

It does seem to indicate a lack of goodwill on the part of the company. What guarantees do we have if the production goes belly up? What if more expenses crop up during rehearsals? It feels a bit like blackmail-you can leave if your not happy, but say bye bye to the $200. My understanding of amateur theatre (correct me if I'm wrong) is that its supposed to be friendly, fun, a group of people working hard and putting on a show because of their sheer love of performance, which is not the vibe I'm getting from this company. I'd be happy to pay a bond for sheet music, script etc but $200 is too much.