Once Bitten, Twice Shy, Third, You are too nice or stupid... thats sums it up?

so I was called by a former head of a place I volunteered at (for those who answered my questions, its where that chic who played me) Im doing it as a "favor". With everything I do, I do favors for someone, and when I do, I get bit in the rear. Am I stupid for going back to help along with my other crap sandwich, or should I just walk away?

sidebar: with all my volunteering I do and my real job. I take it seriously, the people I volunteer dont, they act like kids (juvenile - and rumor mongering with the females) Should I take it seriously as well? or just let the BS roll off my back because for their mess ups Im getting nailed for and I if I dont take is seriously I dont want to get jammed up. So there is my problem
Once Bitten, Twice Shy, Third, You are too nice or stupid... thats sums it up?
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