Syntactic heresies OR Clearly there's something wrong with me
I opened up Eats, Shoots & Leaves, and I do not make it through the acknowledgments before snidely thinking to myself "Oh, the author's one of those grammarians." Which is to say, she has not seen the light and so does not use the serial comma. Apparently that inelegant ambiguity is more tolerated in her native Britain, however, which I should perhaps take as an extenuating circumstance.
no subject
Generally, I try to apply the punctuation where it best demonstrates what the purpose of the punctuation is and the source of the punctuation is. So depending on context I might have punctuation inside my quotation marks, outside, or both.