@Ding an Sich,
When my common-sense radar "pings", I think it important to ascertain exactly why it is pinging. If I am unable to understand and clearly state the problem, I'm obviously missing something, and I don't feel comfortable proceeding until the issue is resolved.
Sometimes I find, after breaking down and analyzing the common-sense ping, that my common-sense objection is a fairly complex and sophisticated one. Its analysis sheds a broader yet clearer light on the original idea in question. I usually come away from the analysis with at least a better understanding of the idea's relationship, or apparent relationship, to other ideas, very often the reason for the initial "ping".
Why would anyone dismiss such a valuable thought aid? If your common-sense is not happy, there's a reason, and you'd better know just what that reason is, well enough to state it clearly and completely. Well enough to successfully argue against its evidence and logic. At least, IMO.
rebecca