I'm from California, so I deal with this stuff all the time too. I was looking at an aerial photo once with an engineer graduate (smart person?) and she asked me what all the green squares were? I had to tell her that they were agricultural plots, probably cotton or wheat fields. Her response was" We still grow that stuff?" I asked her where she thought it came from if we weren't growing it anymore and she told me the grocery store! I couldn't help but laugh. True story I swear.