It’s a sad story that has become so common, that it just kind of blends into the background — like that awful elevator jazz that some coffee shops play (Thelonious Monk would NOT approve), or economy class in-flight meals (there’s less sodium on a salt lick, and you don’t get rammed in the ankle by a cabin trolley). Alas, we’re talking about the cart abandonment epidemic. And epidemic is indeed the right word, because this problem is not local or limited.