Do you offer your UG as a service provider?

I got myself into a bit of a sticky situation at the beginning of our UCLA JUG life. Because I had pitched the JUG to both the campus CIO and the medical center CIO as a Java technology resource as well, after a couple months we actually started getting queries from both sides regarding the creation of small projects to achieve various goals. We'd almost become a free resource, like an open source collective. This became an unwieldy proposition (were we a JUG or a service provider - we couldn't be both) and I had to eventually lay down the law - we couldn't take requests. Has anyone else been in this situation? What did you do in response to the requests, and if you said "yes" how did you find a balance? Thanks and cheers.