They have been taught that if you are sunny, cheery, sincere, group-adjusted, popular, the world is yours, including barbecue pits, charge plates, diaper service, percale sheets, friends for dinner, washer-dryer combinations, color slides of the kiddies on the home projector, and eternal whimsical romance - with crinkly smiles and Rock Hudson dialogue. So they all come smiling and confident and unskilled into a technician's world, and in a few years they learn that it is all going to be grinding and brutal and hateful and precarious. These are the slums of the heart.