Lack of recognition.
Personality clashes.
These two are, right now, the reasons why I stopped volunteering at my church. (By recognition I don't mean I need my ego stroked, I mean that I do not like to be used & discarded.)
I worked on a church project for over two years. When I was laid off of my "real" job I sent an email to the leaders in the church who used my skills often. I was hoping for a job lead, or a reference, or prayer. Instead, nobody replied at all. I was really, really pissed that the church staff used my services for years and then when I needed help, they couldn't be bothered.
The next week, when a staff member screwed up a bunch of stuff, I was quickly called in to fix everything. While I was there, I learned that Mr. Screwup had gone to the pastor and made a bunch of decisions about the project without my input. I was the lead on the project, but this kind of stuff kept happening. So I said, "sounds like this is yours now."
Now it's pretty much dead. I know it will come back stronger than ever some day, but I'm glad I won't be a part of it.
Closer to the theme of this topic, I think my biggest issue now is that lately I'm having a hard time believing anything otherworldly. I remember reading an interview with some pop star a while ago, and she was asked if she viewed her oversexed near-porn music videos as offensive to God. And she gave a lurid answer and said, "if God don't like it, he can call me home right now."
I thought, "huh, that's interesting." I decided to apply a similar concept: someone came by our house to convert me, and I said, "I'll believe in your God if you can call down fire, just like they did in the Bible. Go ahead, call it down." Where is God? Is he the absentee landlord, as Al Pacino said? Or is he not there at all?
The next time I leave a church, my reason may not be "I'm going to another church" but just "I'm going."
-Tony