First off, Mitch made a great summary, so I upvoted his answer.
I wanted to add, remember "official" reason for a downvote: "This question does not show any research effort; it is unclear or not useful." With that in mind, any question that reads:
X "seems" wrong
Y "feels" correct
Which one is correct?
with little-to-no elaboaration or explanation is practically inviting a downvote. My advice: Don't come to a language forum for serious language enthusiasts, and spend 30 seconds writing your question. (Or, put another way, feel free to do just that, but don't be surprised if the question gets downvoted. Did you seriously expect that question would get upvoted?)
One more thing: I've dispensed advice like this before, and was told, "aren't you expecting a lot from a non-native speaker?" I didn't say the question has to be free from errors or grammatical mistakes (the community seems to be very tolerant of those, when an obvious effort has been made), I merely said it should be written in a way that shows you have done some preliminary research. Sometimes 5 minutes of research will answer your question; sometimes it will only puzzle you more. Save your questions here for the latter case. (If that's too much to ask, I strongly suggest creating an account at Yahoo! Answers, where you'll get several helpful responses, and won't need to worry about downvotes).
In this case, I get almost 9 million hits when I Googled "yet another human being." I found over 3,000 citations in Google books.
Did you Google it? (Perhaps you didn't; if that's true, then the question shows no research. Perhaps you did, but you didn't tell us why you remained confused; in that case, the question is unclear).