As I see it, where we disagree is that you say there are situations where lying is good: I think that lies, by their very nature, are always wrong.
Where you perceive my "inhumanity" comes from your Christian-influenced thinking -- that something that is wrong is "sin," infinitely wrong. Right and wrong are, to me, quantitative properties, measured by their karma, not inherent properties. Things can be "a little wrong" or "a lot wrong," just as cities can be nearby or far away. With right and wrong the numbers may be more difficult to assign, and the comparisons consequently more subtle, but there are no absolutes (unless you believe in an omnipotent God that by his nature creates these absolutes, and I don't).
So you think that lying to a Nazi searching for hidden Jews is "always wrong"? The moral corruption of that comment is hilarious if your being literal. Or do you mean that although it is wrong to lie it would be even more wrong to tell the truth? In otherwords the lesser of two evils is to lie. Because telling the truth is in my opinion indisputably the "wrong" thing to do under the circumstances.
I note that for someone who claims there are no absolutes you make this rather absolute arguement:
"As I see it, where we disagree is that you say there are situations where lying is good: I think that lies, by their very nature, are always wrong."