Superliminal advertising

The boxes of sweets/chocolates/jaffa cakes etc on the shelves lining the queue for the tills in Woolworth's have got big, visible yellow stickers on them saying "IMPULSE LINE - PRE-TILLS" or something along those lines. As a customer, I find it quite offensive that they're owning up to strategically placing goodies in the eyeline of people waiting to pay for the things they came into the shop for! What happened to the long-standing tradition of pretending it's all just a coincidence? The decent, honourable thing to do is to be sneaky and underhanded and insult your customers' intelligence.