Garbage truck driver, Craig Randall, brings his work home with him sometimes. There was that old-fashioned sewing machine he found. There were some books he rescued from the trash. And then there was that soft-drink cup that just happened to be worth $200,000. Neither Randall nor his fiancée really believed it until he drove his garbage truck up to the restaurant and picked up the check. Twenty-three-year-old Randall said he lifted the cup from a pile of trash while he was on his route in south Boston. He can't remember exactly where he found it (or he won't say). He began taking notice of those cups after he pealed another sticker from another cup earlier in the week. "I won a chicken sandwich off that one," he said, "so I thought maybe I'd get some fries to go with it." This time, howeve…