I've just disembarked from a bus trip, and I'm looking for my suitcase, which is black and rectangular, and looks like all the other suitcases in the luggage area of the bus, which is open. Then the bus leaves; I think they didn't realize that I hadn't retrieved my luggage, but they are supposed to stop somewhere, where I can run to just around the corner. Then they don't stop there as promised, but I catch them somewhere, and I remember that I should be able to recognize my suitcase by the distinctive luggage tag.