"They're plants. They come from seeds. Maybe someone dropped them and it's just been enough time for them to start sprouting. Or maybe someone is sowing them." He doesn't know which one. He's hoping it's just the former, though if it's the latter then at least once they find (and shoot) who it is, it'll stop. "We went to the warehouse yesterday, too. It's clean. ADI did a good job there last year."