He gets boxes delivered most days of the week. He can see who sends them– and can infer what some of those products are. Even letters come with return addresses that are revealing. Some envelopes may have a particular odor. The point is that the mailman can compile quite a bit of ...
I called the farmer who had sold me the manure and asked him if he’d sprayed anything on his hay fields. He told me he had tried a new product recommended by the University of Florida for the elimination of spiny pigweed, an obnoxious recurring weed in his pastures. “It worked really...