A Saturday morning on a Gray street sounds like mowers answering one another from a block apart. Halbert Lawn Care is one of them, cutting front and back, running the trimmer around swing sets, downspouts and mailbox posts, then edging the walk so it reads straight all the way to the curb. In a town this size a kept yard is a kind of good manners, and the whole street picks up a little from it. Clippings come off the drive before the truck rolls to the next house. Weekends carry the mowing through Gray and the towns close at hand.