People in Chicago must be starving after the long, cold winter there, as they have ravaged this bus-shelter ad from ampm convenience stores to retrieve the snacks inside. Ogilvy put the ad up with the idea of slowly taking the snacks away over a four-week period, to reveal the tagline, “Too much good stuff.” Area vandals shortened the campaign’s run to two days. Curiously, they didn’t seem to like the Doritos much. See the pre-vandalized ad here.