I'd love to start the following conversation in the service group one morning:
Me: "So I recently was asked to donate to ______ charity. When I asked what they would do with my contribution, they talked a lot about their global charity work. When I asked how much money was donated every year, they replied that they don't release that information. When I asked for a breakdown of how much they donated to which causes, and what percent stays with the charity for administrative costs, they said they don't release that information. Whe I asked where I could find and read their financial disclosures, they said they don't release those. Can you believe it?!"
Group: "Wow, I hope you didn't donate!"
Me: "No, of course not. There's really only one reason you don't disclose that information: you don't want the public to know, for one reason or another. Am I right?"
Group: "Yes!"
Me: "Although I second thought, maybe I'm over-reacting. Not all non-profits are willing to release that information, afterall. Take the Watchtower Society, for example. It has never released the type of financial disclosures that most big non-profits do-- contributions, administrative expenses, total assets, etc. I guess I shouldn't be so hard on this charity. The WTS must have a good reason for keeping that information secret, so maybe this charity does too."