A man walks into the bathroom and starts speaking: "Son! How many times have I told you not to do that? Stop it! If you keep doing that, you'll go blind!" The son replies: "I'm over here, Dad." Organizations that serve the blind, are, in many cities called "The Lighthouse", e.g. in New York and San Francisco. A friend told me, "If an organization for the blind is to be called a "Lighthouse", then an organization for the deaf should be called a "Fog horn".
(From the "Rest" of RHF)