When I was in all those philosophy and ethics courses I took to impress girls, we did the standard posers: Is stealing bad? Is stealing a loaf of bread to feed your starving children bad? If you could go back in time and kill Hitler, would you? There is never any good answers to these kind of questions. It always boils down to "it depends upon the situation."
I really don't think most Christians have a concept of "good" or "evil" beyond that of my dogs. They'll take certain actions or refrain from others because of fear of punishment or desire for reward ("..for I dread the loss of Heaven and the pains of Hell") and not out of any innate desire to do good or eschew evil -- because they cannot define those terms either.
I'll have to get back to you later. Have to run now. Husband's orders.