Sometimes We're All That Person

Yesterday being Saturday, I found myself wandering the stacks of my local library.  Due to time constraints, I'd only allowed myself a half an hour for book selection. With the clock ticking, I skimmed spines, flicked open covers to peruse blurbs, and slowly accumulated a trio of books in the crook of my left arm.
So far so good.
Then, suddenly, I became That Person.  
I started off small by dropping a book, which fell to the ground with a sharp thwack! As I leaned to pick the boo...