Tim Mitchell talks to Kathleen Grehan who runs a sign language school in Woking, Dot Sign Language, has taught basic sign language/deaf awareness courses to staff at Heathrow Airport, Lloyds of London, Willmott Dixon and even a Government Minister (in a historic first). She's has also taught many individuals as well. Kathleen is deaf but her communication support worker, Clair Buttery, provides her voice today. www.dotsignlanguage.co.uk