The client whom I call, when away from him, "Mr. Difficult," comes ambling into the room where I've just drilled diagonally up into the attic over the bedroom, and politely asks what those wires are coming out of the bedroom walls near the ceiling....

Be sure that you NEVER say, nor even mutter under your breath, "Lord., give me patience." You can only have patience by learning to exercise it in difficult circumstances, and your prayer WILL be answered: you will be presented with many difficult circumstances in which to learn patience. This situation with Mr. Difficult expanded my ability to be patient with myself and with a slightly insane client!