Don't believe everything the "experts" tell you, especially when it contradicts common sense.
Just to be that counter-point guy...
There are many instances where people who intensely immerse themselves in a field turn out to know a lot more than what is widely regarded as 'common sense'.
People once looked out the window and common sense told them the world was flat. Understandable, it certainly looked that way. Those crazy experts who argued the world was round were asking a lot.
There is an Albert Einstein quote that says something to the effect that "common sense is the collection of prejudices acquired by the age of 18." (Einstein's theory of relativity is another example of something that utterly defies common sense). The scientific method was in part designed to avoid the fallacies of common sense.
Now experts can be wrong, of course. One shouldn't blindly trust someone just because they carry a label. But we might not dismiss them outright either just because their proposals defy our conventions. Common sense has let us down before and we want to be on guard against those who would use it as a weapon to prematurely end debate.