satisfaction guaranteed, daily

Initially this post was going to be bemoaning "satisfaction guaranteed... or your money, quizno sub or love-longing back" advertisements. Because seriously, at what level of instant distaste does one return a half-eaten sandwich/sub? Or does the dissatisfaction build up with every bite - in which case what happens if that stage of return arrives after the sandwich is fully consumed? Of course, one can go on to extraxt meanings of goods-and-customer interaction, the making of the mass market or shopping customs...ummmm, no thanks. Ironically, in a parallel tab, I was searching for a book supposedly banned in India, to take home to India. Only vaguely remembering the title, I soon found that instant satisfaction in googling my way through it.