<i>How are loss prevention supposed to deal with it?</i><p>In the normal, pragmatic way: wait until you actually <i>see them</i> put the opened drink behind something else on the shelf.  Which, not all the time but often enough, you surely will.  If they&#x27;re drinking it out in the open -- in the line at the register, say?  Most likely they&#x27;re going to pay for it.<p><i>Certain people will go so low at the expense of others, it makes for an unworkable culture.</i><p>By the same token, <i>treating people</i> as if they&#x27;re already &quot;low&quot; (by not giving them the benefit of the doubt for an opening a $0.98 bottle of iced tea before paying) makes for an unworkable culture, also.