The Barn at McKenna Farms  You can’t say we weren’t warned. The day before our visit to McKenna Farms, We saw the Facebook post: Nigel, a baby goat, had arrived at the farm.              “Cute,” we thought, “very cute.” We had no idea.             We pulled into the parking lot between school dismissal and dinner time, a very popular time slot. The parking lot was nearly full, and as we rounded the corner of the farmhouse, waiting parents and siblings filled the porches in the warm spring weather, though a number of families had drifted off toward the barn to see the new baby goat.             The last time we were here the new waiting room was nearing completion, piled with furniture. Now we take a look inside, where more parents wait for their children. We’re drawn to the striking painting on the wall, a farm, painted by the grandmother whose granddaughter comes to the farm for therapy.             Then, approaching from the barn, we saw some familiar fac